# UDT configuration lost

**URL:** <https://forum.inductiveautomation.com/t/udt-configuration-lost/71361>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [March 21, 2023, 10:49am UTC](https://forum.inductiveautomation.com/t/udt-configuration-lost/71361 "2023-03-21T10:49:45Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![pgmo](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@pgmo](https://forum.inductiveautomation.com/u/pgmo)\
**Post date:** [March 21, 2023, 10:49am UTC](https://forum.inductiveautomation.com/t/udt-configuration-lost/71361/1 "2023-03-21T10:49:45Z")

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Hi, I've just experienced a scary event! On Friday I left my Ignition project up and running, no Windows, no Ignition Service restart in the meanwhile. Today my UDT instances showed up with a weird warning sign, saying that something was wrong in the UDT configuration. I tried an OPC UA module restart, but with no success. New instances of the same UDT looked good. I then decided to restart the Ignition service: after that all my UDT configurations were gone! To be more precise: one of my UDT has members which are instances of another UDT. The `Value Source` property of those members is _overriden_: the original property is `Memory` and the override value is `Expression`. That worked fine, but after Ignition service restart, all _expressions_ were gone and the `Value Source` was set back to `Memory`.  
In the wrapper.log file I found a bunch of entries like this:  
`[t.e.core] [09:15:38]: Could not locate member '7b6bd986-e07e-455d-813f-c62fef64e8a7.80ce7351-740a-4780-936d-f0aa7370005c.6aa306ac-6f7b-400d-a09c-9c557449ab69' in tag 'PuntoMisuraElettrico' tag=dsGraphTypes`

Any idea?

Thanks, regards

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**Author:** ![dkhayes117](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dkhayes117/32/68344_2.png) [@dkhayes117](https://forum.inductiveautomation.com/u/dkhayes117)\
**Post date:** [March 21, 2023, 12:21pm UTC](https://forum.inductiveautomation.com/t/udt-configuration-lost/71361/2 "2023-03-21T12:21:57Z")

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You should probably contact support for this and include a diagnostic bundle from the gateway.

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/6/26ce2db4877fe8ec48c75dc12cf33b463ead66a6.png)

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**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 21, 2023, 12:55pm UTC](https://forum.inductiveautomation.com/t/udt-configuration-lost/71361/3 "2023-03-21T12:55:00Z")

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You should also collect the auto config.idb backups asap before they're lost, as one of these may have the configuration still. These are under the data/db/auto backup (or similar) folder under the ignition install directory. Unless you have a gateway backup already from prior to the issues

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**Author:** ![pgmo](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@pgmo](https://forum.inductiveautomation.com/u/pgmo)\
**Post date:** [March 21, 2023, 2:44pm UTC](https://forum.inductiveautomation.com/t/udt-configuration-lost/71361/4 "2023-03-21T14:44:29Z")

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Thanks guys, unfortunately I've already repaired the mess I found and I think it's too late for the _Diagnostic Bundle_. Anyway thanks for your suggestion, I will consider it next time .. hoping it will never happen again!  
Regards

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**Author:** ![ataya](https://avatars.discourse-cdn.com/v4/letter/a/f9ae1b/32.png) [@ataya](https://forum.inductiveautomation.com/u/ataya)\
**Post date:** [September 1, 2023, 8:59pm UTC](https://forum.inductiveautomation.com/t/udt-configuration-lost/71361/5 "2023-09-01T20:59:54Z")

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@pgmo Would you mind sharing the solution? Thank you.