A well… Unreal 5.1 came out, so my behavior changed also 
In Play as ListenServer I get it to work without the watchdog.
But in play as client even the watchdog doesn’t cut it anymore as the second time the cue gets activated the removed is never called If I use period 0.5, duration 2.0. But period 0.51 works fine.
I wanted to get this clean, but I’m working on a proto for now so I might stick to ListenServer untill I get time to figure this out.
Also… ■■■■ 5.1 with debug symbol is over 100g