Using block for Self get _(attribute) _ from behaviour ( working On S3.4, iOS)

Is there a know issue of not being able to set Global Attributes to FALSE when inside this block?
I have tested several global variables  that  in other blocks turn off fine and here they cannot set to False.
(after confirming - by for example playing a sound-  that we indeed get the right message)

Thanks

Why are you using the for Self get _(attribute) _ from behavior block for that?

for setting Global attributes (the purple ones), you can just use the purple setters under Game Attributes.

Thanks for your prompt answer. I think I didn't explain  myself well. Yes, I know and I use the Set ___ global variable for that.
Here is a shot of the block. Autosnap is a code behavior.  As test that confirms we're getting the signal out of the get block, The sound gets activated, however the global variable snap2 remains True

still no luck

You probably have another behavior that sets it back to true again.