# \[IGN-2416\] 8.1.4-RC1 Can't change parent data type of non-nested UDT instance **URL:** \ **Category:** Ignition\ **Tags:** ignition80, perspective\ **Created:** [March 23, 2021, 2:34am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769 "2021-03-23T02:34:46Z")\ **Posts on this page:** 13\ **Page:** 1
**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 23, 2021, 2:34am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/1 "2021-03-23T02:34:47Z")
I’m trying to change the parent UDT type of a whole bunch of UDT instances, however I can no longer do this. I know there was a change that was going in at some stage that was going to stop nested UDT instances within a base UDT definition from being changed (makes sense), but this change is affecting the base level as well. Error is: `Bad_Unsupported("Cannot change typeId of inherited tag` These tank instances below are instantiated within the Tanks folder, and their parent data type is greyed out ☹ Brings me back to 7.9 days when the parent data type was disabled in the tag editor but you could still export tags, change it in xml and then re-import to overwrite it. However in this recent change in 8.1.4, I can’t even do that… I have to delete the tags first and re-import ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/a/faefe5d0d143f5dcc169c66d2fa4a2eb90e77038.png) > **[Fix not being able to change TypeId of UDT instances | Voters | Inductive...](https://ideas.inductiveautomation.com/ignition-features-and-ideas/p/fix-not-being-able-to-change-typeid-of-udt-instances)** ---
**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 20, 2021, 9:48pm UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/2 "2021-04-20T21:48:14Z")
Bump ---
**Author:** ![DSI600](https://avatars.discourse-cdn.com/v4/letter/d/ad7895/32.png) [@DSI600](https://forum.inductiveautomation.com/u/DSI600)\ **Post date:** [May 3, 2021, 3:15pm UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/3 "2021-05-03T15:15:21Z")
Bump +1 - When will this be fixed? It is super annoying if you need to change UDT Parent Data Types. Still not fixed in 8.1.5 ---
**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:** [May 3, 2021, 3:20pm UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/4 "2021-05-03T15:20:18Z")
Bugger, I hoped it would have been ☹ ---
**Author:** ![osolorzano](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/osolorzano/32/6432_2.png) [@osolorzano](https://forum.inductiveautomation.com/u/osolorzano)\ **Post date:** [May 3, 2021, 4:31pm UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/5 "2021-05-03T16:31:06Z")
> [@\[BUG-1461\] Changing nested UDT Parent Type not working in instance](http://forum.inductiveautomation.com/t/bug-1461-changing-nested-udt-parent-type-not-working-in-instance/32754/10): > > Looks like this is under development, and the resolution is to disallow changing the UDT parent type from an instance, for what it’s worth. Looking at the forum post regarding the original issue, it looks like what you are seeing is expected. I'll go ahead and write up a new issue to fix this since it sounds like a lot of our reasoning behind the change was focused on nested instances. Regarding issues like this, while the forums have active IA employee presence it's not officially a supported way to report bugs to us so there's no guarantee anyone sees these posts. ---
**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:** [May 3, 2021, 8:21pm UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/6 "2021-05-03T20:21:21Z")
I created a support case as well, but didn’t get any replies yet 😕 Thanks for adding the bug 🙂 ![Screenshot_20210504-055008_Chrome](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/9/b934410a23330c4c602e59622aeb69658a910f4a.jpeg) ---
**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:** [August 16, 2021, 4:31am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/7 "2021-08-16T04:31:12Z")
Any updates on this? Still super frustrating. Also super annoying that you can no longer import tags where the UDT instance doesn’t exist. Really slowing down my workflow ☹ For context: because I can’t change the UDT instance parent type, I thought i’d just copy the tag json, change the UDT parent type id to some bogus value (rather than having to find the UDT in tag browser, copy tag path), paste back in and then update the parent UDT type id in the tag browser using the drop down. But nope… Used to be able to. The other thing while i’m here, is not being able to copy tags from jag json into a UDT definition ☹ ☹ It just comes up saying “can only import UDT definitions” or something ---
**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:** [November 12, 2021, 3:05am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/8 "2021-11-12T03:05:54Z")
Bump ---
**Author:** ![bmusson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bmusson/32/87530_2.png) [@bmusson](https://forum.inductiveautomation.com/u/bmusson)\ **Post date:** [November 12, 2021, 3:52am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/9 "2021-11-12T03:52:42Z")
Extra bump for emotional support. ---
**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:** [November 12, 2021, 4:30am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/10 "2021-11-12T04:30:16Z")
Haha, I _do_ need emotional support when I’m trying to change the type of a UDT instance… ---
**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:** [November 12, 2021, 5:11am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/11 "2021-11-12T05:11:33Z")
I added an idea as well… hopefully to garner more support and hence pressure to actually get it fixed. > **[Fix not being able to change TypeId of UDT instances | Voters | Inductive...](https://ideas.inductiveautomation.com/ignition-features-and-ideas/p/fix-not-being-able-to-change-typeid-of-udt-instances)** ---
**Author:** ![johannes.bo](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/johannes.bo/32/27628_2.png) [@johannes.bo](https://forum.inductiveautomation.com/u/johannes.bo)\ **Post date:** [November 12, 2021, 7:00am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/12 "2021-11-12T07:00:55Z")
Is this what you are looking for? 🧐 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/a/1a329b909b8bbbcd19fe945c6fc6ccb71a52e974.png) ---
**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:** [November 12, 2021, 7:02am UTC](https://forum.inductiveautomation.com/t/ign-2416-8-1-4-rc1-cant-change-parent-data-type-of-non-nested-udt-instance/44769/13 "2021-11-12T07:02:36Z")
Awesome! Thanks, I should have checked the release notes myself 😅 Edit: I literally just deleted 14k tags just to replace 60 UDT instance type ids in 8.1.5 😕