# \[BUG ?\] Ignition 8.1.0 - ticket 16848 solved in 8.0.16 is back in 8.1.0?

**URL:** <https://forum.inductiveautomation.com/t/bug-ignition-8-1-0-ticket-16848-solved-in-8-0-16-is-back-in-8-1-0/40460>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [November 9, 2020, 8:20pm UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-1-0-ticket-16848-solved-in-8-0-16-is-back-in-8-1-0/40460 "2020-11-09T20:20:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [November 9, 2020, 8:20pm UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-1-0-ticket-16848-solved-in-8-0-16-is-back-in-8-1-0/40460/1 "2020-11-09T20:20:02Z")

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@Colby.Clegg, @paul-griffith  
I’ve upgraded from **8.0.16** to **8.1.0** and in 8.1.0 I think that this issue is back:

**16848: Adding new tag() Expression tag to existing UDTDef with instances takes ~25 seconds per instance to complete**  
Use of the tag() function inside a tag in a UDT can potentially lead to a blocking delay of 30 seconds when the tag is initialized.

Could you please check if **8.1.0** contains this bug fix ?

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**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [November 9, 2020, 9:18pm UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-1-0-ticket-16848-solved-in-8-0-16-is-back-in-8-1-0/40460/2 "2020-11-09T21:18:15Z")

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The fix in question is in place for 8.1.0 and 8.1.1. Are you already in contact with support about this?

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [November 10, 2020, 10:54am UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-1-0-ticket-16848-solved-in-8-0-16-is-back-in-8-1-0/40460/3 "2020-11-10T10:54:34Z")

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> [@mazeyrat](#):
>
> I’ve upgraded from **8.0.16** to **8.1.0** and in 8.1.0 I think that this issue is back:
> 
> **16848: Adding new tag() Expression tag to existing UDTDef with instances takes ~25 seconds per instance to complete**  
> Use of the tag() function inside a tag in a UDT can potentially lead to a blocking delay of 30 seconds when the tag is initialized.
> 
> Could you please check if **8.1.0** contains this bug fix ?

I've just filled a ticked : #134045  
As a side note : for the same tag file import the designer disconnection from the gateway is about 5-10 minutes instead of 30 minutes as in pre 8.0.16 and there are lee readBlocking error in the gateway logs.