RHFB DMX issues

Hi,
Has anyone seen issues where consoles stop outputting dmx after long periods of inactivity?
Left a RHFB + FB wing for 2 hours and came back,fixtures would not respond in any way.
The output window was showing the output values but without any actual output from the console.
The fixtures were getting dmx and responded to the house console when we switched the DMX over.
Logged off and on,fixtures would not respond.
Cycled the console power and the show cam back online.
Internal super widget only.

Regards Cormac
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