Expression Maps stops reacting ??

Hello Forum

I have used Expression maps in Cubase 10.5 for severel years now and know how to create one and use it in Cubase.
But of some reason some of my expression maps stops reacting ??? And it happen even i small project with few vst instruments i f.eks Kontakt
I cant figure out what the problem and pretty annoying when it happens ! and I seems to happen randomly !
MAYBE it do something wrong and haven´t recognized it ?
Let me tell you when it happens.
I use Native Instrument Symphony Series, string ensemble and also Session Strings Pro 2.
Could the unstability be in my expression maps ?
Is there an expert here somewhere


Is it the same reported is this one, please?