# Vision Client turns red **URL:** \ **Category:** Ignition\ **Tags:** vision\ **Created:** [June 19, 2025, 8:07pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595 "2025-06-19T20:07:04Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Melvin\_Miclat](https://avatars.discourse-cdn.com/v4/letter/m/ba9def/32.png) [@Melvin\_Miclat](https://forum.inductiveautomation.com/u/Melvin_Miclat)\ **Post date:** [June 19, 2025, 8:07pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/1 "2025-06-19T20:07:04Z")
Hi, Vision Client turns red all over. Looks like it is losing coms every time I add a tag (UDT) or edit a tag(UDT). What could be the issue? ---
**Author:** ![bschroeder](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bschroeder/32/13260_2.png) [@bschroeder](https://forum.inductiveautomation.com/u/bschroeder)\ **Post date:** [June 19, 2025, 8:15pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/2 "2025-06-19T20:15:29Z")
What PLC are you using? ---
**Author:** ![Melvin\_Miclat](https://avatars.discourse-cdn.com/v4/letter/m/ba9def/32.png) [@Melvin\_Miclat](https://forum.inductiveautomation.com/u/Melvin_Miclat)\ **Post date:** [June 19, 2025, 8:30pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/3 "2025-06-19T20:30:15Z")
PLC is AB 1756-L85E. ---
**Author:** ![bschroeder](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bschroeder/32/13260_2.png) [@bschroeder](https://forum.inductiveautomation.com/u/bschroeder)\ **Post date:** [June 19, 2025, 8:45pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/4 "2025-06-19T20:45:26Z")
And you mean Ignition UDTs right? How do you have your tags groups setup? What does your PLC loading look like? ---
**Author:** ![Lynn\_Martineau](https://avatars.discourse-cdn.com/v4/letter/l/f1d935/32.png) [@Lynn\_Martineau](https://forum.inductiveautomation.com/u/Lynn_Martineau)\ **Post date:** [June 19, 2025, 9:19pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/5 "2025-06-19T21:19:58Z")
for how long? It's normal for that to take a few seconds, depending on how many UDT instances you have. When you edit a UDT, every instance of the UDT is interrupted while it updates with the changes that were made. If your changes are scripting edits (_not good_), use Gateway Tag Change event scripts (_best_) or have tag change event scripts call gateway scripts (_better_) and that will allow you to make code changes without interrupting all your 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:** [June 19, 2025, 10:32pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/6 "2025-06-19T22:32:11Z")
What version of Ignition are you running? v7 would restart all of the UDT instances upon changes to any of the tags within the definition which would cause red overlays like this. Does it stay red or does it come back? ---
**Author:** ![Melvin\_Miclat](https://avatars.discourse-cdn.com/v4/letter/m/ba9def/32.png) [@Melvin\_Miclat](https://forum.inductiveautomation.com/u/Melvin_Miclat)\ **Post date:** [June 20, 2025, 4:51pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/7 "2025-06-20T16:51:38Z")
Ignition Version is 8.1.42 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/3/23c68193c4b7c1004203883cd195b5cc54c4eed8.png) PLC Loading is 50% ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [June 20, 2025, 5:21pm UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/8 "2025-06-20T17:21:48Z")
Are you change tags in the PLC with Studio 5000? If so, then you **are** losing access to fresh data while Ignition rescans the tags and types in the PLC. (Ignition looks for metadata changes once per minute if set to auto-rebrowse.) ---
**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:** [June 21, 2025, 4:27am UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/9 "2025-06-21T04:27:40Z")
> [@nminchin](#): > > Does it stay red or does it come back? ? ---
**Author:** ![robertm](https://avatars.discourse-cdn.com/v4/letter/r/ea5d25/32.png) [@robertm](https://forum.inductiveautomation.com/u/robertm)\ **Post date:** [June 29, 2025, 12:01am UTC](https://forum.inductiveautomation.com/t/vision-client-turns-red/107595/10 "2025-06-29T00:01:34Z")
What loading is 50%? The Ignition device performance? How many tags, what poll rates, etc. You've given very limited info to receive a relevant response. You didn’t answer are the changes to UDTs in the PLC (which would be offline and require a download, during which Ignition loses connectivity), or are the changes to UDTs in Ignition? How many instances of the UDT types that youre changing. How many elements in the UDT?