# \[IGN-12538\]Custom Session Properties Gone **URL:** \ **Category:** Ignition\ **Tags:** perspective\ **Created:** [April 21, 2023, 10:33pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785 "2023-04-21T22:33:02Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Post date:** [March 10, 2025, 8:53am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/21 "2025-03-10T08:53:59Z")
> [@Aiasa21](#): > > worrying Definitely, especially if you don't have a recent backup. Not that you wouldn't... ---
**Author:** ![AUSDIV](https://avatars.discourse-cdn.com/v4/letter/a/e47c2d/32.png) [@AUSDIV](https://forum.inductiveautomation.com/u/AUSDIV)\ **Post date:** [March 10, 2025, 12:26pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/22 "2025-03-10T12:26:52Z")
I had this issue when importing my project to a new PC. When I opened the designer sometimes Custom props would be gone, and sometimes the title menu would be gone. I had to re-open the designer multiple times without saving in order to get a 'good load' then saved, and the problem hasn't seemed to come back. Unfortunately, I originally made a save prior to realizing that issue was occurring, and it messed things up royally, making me have to restore back up again. If anything, this taught me the automatic backups from ignition is a great tool to have in place in the event of any issues, I also now am in the habit of verifying when I load designer the Session props and the page configuration load appropriately prior to making/saving and changes. Never ran into this problem until I restored for the first time, however. ---
**Author:** ![Clancy\_Cavanaugh](https://avatars.discourse-cdn.com/v4/letter/c/45deac/32.png) [@Clancy\_Cavanaugh](https://forum.inductiveautomation.com/u/Clancy_Cavanaugh)\ **Post date:** [March 10, 2025, 2:04pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/23 "2025-03-10T14:04:54Z")
The release notes for version 8.1.47 appear to have a relevant entry. > Fixed an issue that caused bound custom session properties to disappear from the Designer after merging updates from the Gateway. [Ignition Release Notes for Version 8.1.47 | Inductive Automation](https://inductiveautomation.com/downloads/releasenotes/8.1.47) ---
**Author:** ![RLmason](https://avatars.discourse-cdn.com/v4/letter/r/b19c9b/32.png) [@RLmason](https://forum.inductiveautomation.com/u/RLmason)\ **Post date:** [April 23, 2025, 2:01pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/24 "2025-04-23T14:01:48Z")
My gateway is running 8.1.47 and the same problem happened today for a session custom property with the persistent option set to True. ---
**Author:** ![Aiasa21](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\ **Post date:** [April 23, 2025, 2:09pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/25 "2025-04-23T14:09:17Z")
Bad news, yesterday I've updated to 8.1.47 hoping to fix this šŸ˜… ---
**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Post date:** [April 24, 2025, 1:03am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/26 "2025-04-24T01:03:20Z")
Yeah we're on 47 and had it happen a few weeks ago in the office dev environment (3 devs working on it) ---
**Author:** ![Aiasa21](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\ **Post date:** [April 24, 2025, 5:31am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/27 "2025-04-24T05:31:50Z")
> [@nminchin](#): > > Yeah we're on 47 and had it happen a few weeks ago in the office dev environment (3 devs working on it) Last week it also happened to me with 8.1.37 (I hadn't updated the version yet), but I had the problem during some "overlapping status" caused by network errors in the office. ---
**Author:** ![Kevin\_Verschueren](https://avatars.discourse-cdn.com/v4/letter/k/dc4da7/32.png) [@Kevin\_Verschueren](https://forum.inductiveautomation.com/u/Kevin_Verschueren)\ **Post date:** [May 23, 2025, 9:52am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/28 "2025-05-23T09:52:04Z")
Today, this also happend to me with version 8.1.47. ---
**Author:** ![joshuatlewis](https://avatars.discourse-cdn.com/v4/letter/j/5daacb/32.png) [@joshuatlewis](https://forum.inductiveautomation.com/u/joshuatlewis)\ **Post date:** [June 3, 2025, 10:45pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/29 "2025-06-03T22:45:48Z")
Had them same thing happen today running 8.1.47 ---
**Author:** ![jiml](https://avatars.discourse-cdn.com/v4/letter/j/779978/32.png) [@jiml](https://forum.inductiveautomation.com/u/jiml)\ **Post date:** [June 4, 2025, 12:58am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/30 "2025-06-04T00:58:00Z")
Had it happen on 8.1.48 so its still with us. ---
**Author:** ![MESConsultant](https://avatars.discourse-cdn.com/v4/letter/m/35a633/32.png) [@MESConsultant](https://forum.inductiveautomation.com/u/MESConsultant)\ **Post date:** [July 10, 2025, 7:16am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/31 "2025-07-10T07:16:48Z")
Hello, The bug is still with us 8.1.47. I noticed this happens whenever I make a CSS-related change, like a change to the stylesheet.css file. Maybe it helps, but it doesn't happen all the time. It hasn't happened for a month. When we started making CSS changes, it started happening even during the day. I'm not sure if it's related, but maybe it helps. It's very annoying and would cause major problems if it happened live. ---
**Author:** ![jfogt](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jfogt/32/76986_2.png) [@jfogt](https://forum.inductiveautomation.com/u/jfogt)\ **Post date:** [July 31, 2025, 12:18pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/32 "2025-07-31T12:18:35Z")
Just chiming in to say I have had the same issue on 8.1.48. We have two devs working on a project simultaneously, but also have been editing the CSS stylesheet recently. Not sure which the issue could be related to. ---
**Author:** ![Dean\_So](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@Dean\_So](https://forum.inductiveautomation.com/u/Dean_So)\ **Post date:** [August 26, 2025, 3:19am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/33 "2025-08-26T03:19:35Z")
Adding on, Iā€™ve had this occur on our project with 5 devs working on it, running 8.1.48. Unfortunately unable to reliably reproduce it but weā€™ve had it occur multiple times so far. ---
**Author:** ![Elizabeth\_Engler](https://avatars.discourse-cdn.com/v4/letter/e/e9bcb4/32.png) [@Elizabeth\_Engler](https://forum.inductiveautomation.com/u/Elizabeth_Engler)\ **Post date:** [September 1, 2025, 9:29pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/34 "2025-09-01T21:29:15Z")
Had this same issue happen. Currently working on a test project in 8.1.48 (not edge, regular ignition). Launched my project one day and there were errors due to all the custom session props being gone. Just empty. The previous props consisted of 2 unbound props, and an object with several bound props under it. I was able to restore them all from a backup like @pascal.fragnoud suggested. But would hate to have this happen in production and end use. I think what caused it was hitting the update button to ā€œMerge any new changes on the Gateway into the open projectā€. ---
**Author:** ![james.vosler](https://avatars.discourse-cdn.com/v4/letter/j/8797f3/32.png) [@james.vosler](https://forum.inductiveautomation.com/u/james.vosler)\ **Post date:** [September 4, 2025, 7:43pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/35 "2025-09-04T19:43:53Z")
Still happens in 8.1.48. All session.custom props missing, not just ones with bindings. Copy/paste did not show up with bindings, so I donā€™t suspect any relation to being persistent. Did not coincide with any ā€˜Restarting gateway scriptsā€¦ā€™ log entries. ---
**Author:** ![code\_skin](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@code\_skin](https://forum.inductiveautomation.com/u/code_skin)\ **Post date:** [September 5, 2025, 12:48pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/36 "2025-09-05T12:48:14Z")
If you have multiple developers, you should communicate with each other when creating/modifying custom session properties; since itā€™s a last-save-wins ordeal. I found with flaky connections this occurs more often. Once this is understood from all parties involved, the issue will resurface less. ---
**Author:** ![Aiasa21](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\ **Post date:** [October 14, 2025, 11:03am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/37 "2025-10-14T11:03:02Z")
This has just happened to me. I am on version 8.1.47, and according to the release notes: > **Perspective** Fixed an issue that caused bound custom session properties to disappear from the Designer after merging updates from the Gateway. I cannot find any news about updates that fix the problem in any release after 8.1.47. The problem still exists, and it is a huge problem. ---
**Author:** ![cniemuth1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/cniemuth1/32/80715_2.png) [@cniemuth1](https://forum.inductiveautomation.com/u/cniemuth1)\ **Post date:** [October 18, 2025, 5:38pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/38 "2025-10-18T17:38:31Z")
Hey All, I am seeing the same problem in in 8.1.49 as well. I have custom session properties with bindings and they are marked as persistent but randomly disappear. I even just had it where I had the designer open and I could see the properties, but in my perspective session, it said the properties were missing. I closed my designer, reopened, and they were gone. ---
**Author:** ![Aiasa21](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\ **Post date:** [October 18, 2025, 6:42pm UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/39 "2025-10-18T18:42:10Z")
Good to know. I wanted to update the system, but Iā€™ll wait. I contacted support, and they told me to try setting the property as persistent. However, this also happened to you with that already set, so thatā€™s clearly not the solution. If it helps, every time this happens to me, Iā€™ve had network connection issues. ---
**Author:** ![jonathan.taylor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jonathan.taylor/32/4048_2.png) [@jonathan.taylor](https://forum.inductiveautomation.com/u/jonathan.taylor)\ **Post date:** [October 24, 2025, 11:55am UTC](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785/40 "2025-10-24T11:55:50Z")
FYI we are still seeing this in 8.3.0 and 8.3.1 with multiple developers [Previous page](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785.md?page=1) [Next page](https://forum.inductiveautomation.com/t/ign-12538-custom-session-properties-gone/72785.md?page=3)