Signals don't seem to work for me at all

I've been trying for hours to use signals without any success.

I have a process which uses a subprocess that sends a signal. I try to catch it in the main process but i can't in any way. When the flow reaches the signal it just closes the case.

It's not just in that. I tried in the same process (but simplified without subprocesses and other stuff) to use a signal intermediate event to throw a signal and then another one to catch it (same name of course) and i have no luck, same thing happens again.

Can you please tell me if i'm doing something wrong??

I attach the whole process and a subprocess to show you.

Thanks in advance,

Gonzalo