# \[Bug-13935\]Required to restart tags after UDT instance change **URL:** \ **Category:** Ignition Early Access\ **Created:** [July 17, 2019, 8:05pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640 "2019-07-17T20:05:43Z")\ **Posts on this page:** 19\ **Page:** 1
**Author:** ![kmurray](https://avatars.discourse-cdn.com/v4/letter/k/67e7ee/32.png) [@kmurray](https://forum.inductiveautomation.com/u/kmurray)\ **Post date:** [July 17, 2019, 8:05pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/1 "2019-07-17T20:05:43Z")
It seems I have to hit “restart tag” to refresh OPC paths every time I make a change to a UDT instance. Why is this not automatic like it was in 7.9? Build b2019060511 ---
**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:** [July 17, 2019, 8:32pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/2 "2019-07-17T20:32:24Z")
> [@kmurray](#): > > b2019060511 Does this still occur in a more recent build? ---
**Author:** ![kmurray](https://avatars.discourse-cdn.com/v4/letter/k/67e7ee/32.png) [@kmurray](https://forum.inductiveautomation.com/u/kmurray)\ **Post date:** [July 17, 2019, 9:20pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/3 "2019-07-17T21:20:13Z")
Yes, confirmed in 8.0.3-b20190716 The steps to recreate: 1. Create a new instance of a UDT using {InstanceName} to generate part of a child tag’s OPC path 2. Note the OPC path of the child tag correctly reflects the instance name 3. Change name of UDT instance 4. Note the OPC path of the child tag still reflects the old instance name 5. “Restart tag” on UDT instance 6. Note the OPC path of the child tag updates to reflect the correct instance name ---
**Author:** ![kmurray](https://avatars.discourse-cdn.com/v4/letter/k/67e7ee/32.png) [@kmurray](https://forum.inductiveautomation.com/u/kmurray)\ **Post date:** [July 17, 2019, 9:24pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/4 "2019-07-17T21:24:01Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/3/3323bef6f23d98265ac91d19d9574cc97ac358d1.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/6/6ac840cf29e9cadaa7ffe3ca527750a4533cd9fc.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/ed7e0842e06999b61c57786b6b1f83c19cd68e78.png) ---
**Author:** ![ggross](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ggross/32/12668_2.png) [@ggross](https://forum.inductiveautomation.com/u/ggross)\ **Post date:** [August 13, 2019, 8:21pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/5 "2019-08-13T20:21:49Z")
This is an issue that we are aware of. We appreciate your patience as we work to resolve it. Thanks, Garth ---
**Author:** ![andrea.morando](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/andrea.morando/32/8039_2.png) [@andrea.morando](https://forum.inductiveautomation.com/u/andrea.morando)\ **Post date:** [September 25, 2019, 8:28pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/6 "2019-09-25T20:28:16Z")
Dears, I noticed a similar reported bug, also in case of modifications of tag historical properties (like “historySampleRate”) inside an UDT: I need to restart the tag before seeing the expected historical changes (like the sample rate). Thanks. ---
**Author:** ![AntonioG](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/antoniog/32/11149_2.png) [@AntonioG](https://forum.inductiveautomation.com/u/AntonioG)\ **Post date:** [October 2, 2019, 3:52pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/7 "2019-10-02T15:52:41Z")
Dears, I have found the same issue. Is there any news about the resolution of the issue? Thanks ---
**Author:** ![awalker](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/awalker/32/6874_2.png) [@awalker](https://forum.inductiveautomation.com/u/awalker)\ **Post date:** [October 2, 2019, 4:38pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/8 "2019-10-02T16:38:46Z")
Hi All, We had some other high priority issues that we were working through, but this is high on our list as well. I will circle back when we have a fix. Thanks! ---
**Author:** ![Paul.Scott](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul.scott/32/4578_2.png) [@Paul.Scott](https://forum.inductiveautomation.com/u/Paul.Scott)\ **Post date:** [January 7, 2020, 1:40am UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/9 "2020-01-07T01:40:36Z")
The 8.0.8 nightly that went up this morning should contain a fix for the issue presented here. EDIT: I’m showing this as being introduced in 8.0.10, not 8.0.8. Regardless, nightly builds now contain a fix. ---
**Author:** ![accyroy](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/accyroy/32/3386_2.png) [@accyroy](https://forum.inductiveautomation.com/u/accyroy)\ **Post date:** [January 7, 2020, 8:03pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/10 "2020-01-07T20:03:28Z")
That’s great, what is the ETA for stable 8.0.8? This bug hurts. ---
**Author:** ![Paul.Scott](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul.scott/32/4578_2.png) [@Paul.Scott](https://forum.inductiveautomation.com/u/Paul.Scott)\ **Post date:** [January 7, 2020, 9:28pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/11 "2020-01-07T21:28:13Z")
We’re targeting January 20th for the RC, February 4th for production release. It goes without saying, but the dates above are subject to change. ---
**Author:** ![dion.botha](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@dion.botha](https://forum.inductiveautomation.com/u/dion.botha)\ **Post date:** [December 1, 2020, 9:30pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/12 "2020-12-01T21:30:24Z")
I had to restart a bunch of tags (not just ones within UDTs) in different devices after upgrading from V8.0.16 to V8.1.0 ---
**Author:** ![dion.botha](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@dion.botha](https://forum.inductiveautomation.com/u/dion.botha)\ **Post date:** [January 13, 2021, 7:40pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/13 "2021-01-13T19:40:25Z")
Still having to restart tags each time a machine is power cycled as accyroy states - this bug hurts. ---
**Author:** ![jeff.m.miller](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@jeff.m.miller](https://forum.inductiveautomation.com/u/jeff.m.miller)\ **Post date:** [May 25, 2021, 8:15pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/14 "2021-05-25T20:15:13Z")
did you hear anything. I noticed what I think is the same issue in V8.1.5 ---
**Author:** ![dion.botha](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@dion.botha](https://forum.inductiveautomation.com/u/dion.botha)\ **Post date:** [June 7, 2021, 6:17pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/15 "2021-06-07T18:17:54Z")
No, I don’t have any solutions and this still happens intermittently. ---
**Author:** ![hankhaines](https://avatars.discourse-cdn.com/v4/letter/h/ecd19e/32.png) [@hankhaines](https://forum.inductiveautomation.com/u/hankhaines)\ **Post date:** [July 12, 2021, 8:53pm UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/16 "2021-07-12T20:53:07Z")
In 8.1.1 I am having problems with reference tags created on a field instance and propagated with MQTT not appearing in the sqlth\_te table after adding them on the field instance, using MQTT Transmission Control to send them across, add history function to our history instance, and then even restarting the tags, One shows up, and two others, one of which is currently bad quality/disabled, now appearing in the database and so tag history queries are not working. ---
**Author:** ![whawking](https://avatars.discourse-cdn.com/v4/letter/w/ba9def/32.png) [@whawking](https://forum.inductiveautomation.com/u/whawking)\ **Post date:** [July 27, 2021, 4:32am UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/17 "2021-07-27T04:32:24Z")
I’m having to restart UDTs after a PLC has lost comms. I’m running 8.1.7. Has this been resolved? Is there away I can restart tag via a script? ---
**Author:** ![jeff.m.miller](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@jeff.m.miller](https://forum.inductiveautomation.com/u/jeff.m.miller)\ **Post date:** [July 27, 2021, 11:35am UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/18 "2021-07-27T11:35:14Z")
the tags can be restarted from script. Just have to set the Enable = 0 and back to 1. I setup a watch dog type heartbeat with device and if the tag status is bad for more 10min I try to restart all the tags. This is can be done at the folder level. I still have not gotten an answer why i had to add this logic as it was not an issue with 8.0.15. ---
**Author:** ![whawking](https://avatars.discourse-cdn.com/v4/letter/w/ba9def/32.png) [@whawking](https://forum.inductiveautomation.com/u/whawking)\ **Post date:** [July 28, 2021, 1:13am UTC](https://forum.inductiveautomation.com/t/bug-13935-required-to-restart-tags-after-udt-instance-change/26640/19 "2021-07-28T01:13:52Z")
Thanks Jeff. How do I reset the enabled at the folder level in a script? I can do it for a standard tag, but not the UDT or folder.