# URGENT: When writing to a bool tag in an UDT the value reset immediately **URL:** \ **Category:** Ignition\ **Tags:** perspective\ **Created:** [April 14, 2023, 11:35am UTC](https://forum.inductiveautomation.com/t/urgent-when-writing-to-a-bool-tag-in-an-udt-the-value-reset-immediately/72452 "2023-04-14T11:35:00Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Theodorska](https://avatars.discourse-cdn.com/v4/letter/t/34f0e0/32.png) [@Theodorska](https://forum.inductiveautomation.com/u/Theodorska)\ **Post date:** [April 14, 2023, 11:35am UTC](https://forum.inductiveautomation.com/t/urgent-when-writing-to-a-bool-tag-in-an-udt-the-value-reset-immediately/72452/1 "2023-04-14T11:35:00Z")
Hello, We have an urgent issue. We have one UDT where there are multiple writable tags. however when we write to them f.x. setting a bool to true it immediately goes back to false in less than a second. When we write to it, the signal does not make it to the PLC so the issue is in Ignition. Note. we have multiple other UDT's that are set up the same way where this issue is not present; they are working fine. We are multiple people working in ignition and we believe one person may have linked the UDT to a perspective view in a way that doesn't allow us to change any values in this specific UDT as the UDT's values are linked to a view in specific way. _ **Is this possible?** _ We have noticed multiple places that the UDT is linked as a view param set to input mode. Meaning that view param was initially input/output, then linked to the UDT, then set to input only. However, we have not found these links to be bidirectional. AND this has been done with other UDT's without the same problem. However, we are not able to think of a different way this problem could occur. Any one had similar issues? ---
**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:** [April 14, 2023, 11:41am UTC](https://forum.inductiveautomation.com/t/urgent-when-writing-to-a-bool-tag-in-an-udt-the-value-reset-immediately/72452/2 "2023-04-14T11:41:23Z")
For anything urgent, you should call support. This forum is not support. That said, yes, it is possible for all kinds of bindings and scripts to cause a particular tag to be forced to some specific value. You will have to search for references to the tag, and inspect any code paths that might generate a reference indirectly. ---
**Author:** ![Theodorska](https://avatars.discourse-cdn.com/v4/letter/t/34f0e0/32.png) [@Theodorska](https://forum.inductiveautomation.com/u/Theodorska)\ **Post date:** [April 14, 2023, 11:48am UTC](https://forum.inductiveautomation.com/t/urgent-when-writing-to-a-bool-tag-in-an-udt-the-value-reset-immediately/72452/3 "2023-04-14T11:48:16Z")
Thank you so much for your swift response! I will call support now. This applies to an entire UDT containing quite a lot of tags. The problem only occurs for this UDT. Is there a way to see all places a UDT is linked to? ---
**Author:** ![Theodorska](https://avatars.discourse-cdn.com/v4/letter/t/34f0e0/32.png) [@Theodorska](https://forum.inductiveautomation.com/u/Theodorska)\ **Post date:** [April 14, 2023, 12:30pm UTC](https://forum.inductiveautomation.com/t/urgent-when-writing-to-a-bool-tag-in-an-udt-the-value-reset-immediately/72452/4 "2023-04-14T12:30:14Z")
The issue has been resolved. It was not ignition. My bad. ---
**Author:** ![Theodorska](https://avatars.discourse-cdn.com/v4/letter/t/34f0e0/32.png) [@Theodorska](https://forum.inductiveautomation.com/u/Theodorska)\ **Post date:** [April 14, 2023, 12:30pm UTC](https://forum.inductiveautomation.com/t/urgent-when-writing-to-a-bool-tag-in-an-udt-the-value-reset-immediately/72452/5 "2023-04-14T12:30:33Z")
I have flagged this post to be deleted ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [April 14, 2023, 12:36pm UTC](https://forum.inductiveautomation.com/t/urgent-when-writing-to-a-bool-tag-in-an-udt-the-value-reset-immediately/72452/6 "2023-04-14T12:36:08Z")
Normal etiquette would be to explain what the issue was and leave the post up.