Hi!

At first look I see that you do not have the latest evtap version, I made some changes to it that are not relevant in this case but I recommend using the latest

It might be that there is something wrong with the timeout polling code in evtap, if it behaves in the manner you describe. I see from your preinit script that you use it in one instance having timeout of 1000 ms, so I imagine that it might go so that the code does not continue until the 1s timeout is expired?
However I have tested evtap with different timeouts myself and it should return immediately after a registered screentap even when using long timeouts.