Trigger "one of" not working

I think I would need access to the server - so no, i did not.

But i just checked again:

1. trigger configuration as shown in the screenshow: does NOT work.
2. trigger cloned and changed the condition from “end with one of” to “contains”: I get the 2 test mail addresses auto formatted to .k***t@m****e,.test.mail@gmail.com (so with coma) - tested this too: does NOT work.
3. changing the value in “contains” to .k***t@m****e (so just one mail) - tested: DOES work.

So the mail I sent, the from and the trigger it self works.
Just the “one of” does not work.