# \[BUG\] Memory Tags not working after rebooting gateway SOLVED

**URL:** <https://forum.inductiveautomation.com/t/bug-memory-tags-not-working-after-rebooting-gateway-solved/31672>\
**Category:** Ignition\
**Created:** [January 28, 2020, 1:55pm UTC](https://forum.inductiveautomation.com/t/bug-memory-tags-not-working-after-rebooting-gateway-solved/31672 "2020-01-28T13:55:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mfontana](https://avatars.discourse-cdn.com/v4/letter/m/51bf81/32.png) [@mfontana](https://forum.inductiveautomation.com/u/mfontana)\
**Post date:** [January 28, 2020, 1:55pm UTC](https://forum.inductiveautomation.com/t/bug-memory-tags-not-working-after-rebooting-gateway-solved/31672/1 "2020-01-28T13:55:50Z")

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Hello to everyone,  
I found a strange behavior, I’m using Ignition V8.0.7, created a memory tag and it work perfectly.  
When I reboot the PC the memory tag became “stuck”.  
The error message I found is “Uncertain\_InitialValue”.  
When I try to force the value, by script or manually on the tag, it try to write “null” and it’s impossible to restore.  
To solve I have to delete the memory tag and re-create it and untill the next reboot everything work correctly.

thank you for the support

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**Author:** ![Henk](https://avatars.discourse-cdn.com/v4/letter/h/b5ac83/32.png) [@Henk](https://forum.inductiveautomation.com/u/Henk)\
**Post date:** [January 28, 2020, 2:07pm UTC](https://forum.inductiveautomation.com/t/bug-memory-tags-not-working-after-rebooting-gateway-solved/31672/2 "2020-01-28T14:07:50Z")

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V8.0.4  
We sometimes also have this problem with memory tags that contain an expression. However, after opening the expression and then closing it again, the problem often resolves.

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**Author:** ![mfontana](https://avatars.discourse-cdn.com/v4/letter/m/51bf81/32.png) [@mfontana](https://forum.inductiveautomation.com/u/mfontana)\
**Post date:** [January 28, 2020, 2:10pm UTC](https://forum.inductiveautomation.com/t/bug-memory-tags-not-working-after-rebooting-gateway-solved/31672/3 "2020-01-28T14:10:46Z")

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Thank you for the reply.  
Unfortunatly there are no expression on the tag.  
It’s just a memory tag to store the number of active allarm.  
The calculation are done in the gateway time script every 5 second and write the result in this memory.

The strange part it’s that I create a counter from 0 to 100, in the same way, and that work without issues.

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**Author:** ![mfontana](https://avatars.discourse-cdn.com/v4/letter/m/51bf81/32.png) [@mfontana](https://forum.inductiveautomation.com/u/mfontana)\
**Post date:** [January 31, 2020, 2:45pm UTC](https://forum.inductiveautomation.com/t/bug-memory-tags-not-working-after-rebooting-gateway-solved/31672/4 "2020-01-31T14:45:52Z")

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Hello to everyone,  
someone have some news? Some suggestion?

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**Author:** ![mfontana](https://avatars.discourse-cdn.com/v4/letter/m/51bf81/32.png) [@mfontana](https://forum.inductiveautomation.com/u/mfontana)\
**Post date:** [February 5, 2020, 9:13am UTC](https://forum.inductiveautomation.com/t/bug-memory-tags-not-working-after-rebooting-gateway-solved/31672/5 "2020-02-05T09:13:00Z")

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Hello to everyone,  
I found the problem, It’s a incompatibility with the command ‘system.tag.write(…)’, if I use the command ‘system.tag.writeBlocking’ work without problem.

It seems that command it’s not fully compatible with Ignition 8