Broadcast over two digipeaters results a loop

Hi,

Me and my friend today tested VarAC over two VARA FM digipeaters. We had some initial hiccups, but one resulted a bigger problem. Setup: Me OH2TJS <--> DGPTR_1 <--> DGPTR_2 <--> OH2FRND (all in same frequency)

All four running the latest VARA FM and VarAC. When I or my mate creates a Broadcast message and sends it "VIA DGPTR_1 DGPTR_2" (or in reverse in his case), this results a loop of digipeated messages from both digipeaters, back ond forth. I can only stopped by shutting down a VARA FM (one of the digipeaters) or sending a ping (VARA FM or VarAC ping) in between looping messages. Chatting directly over two digipeaters works very well, only broadcast causes some trouble. There is not much of information about this, only one short discussion on Groups.io: https://groups.io/g/VARA-MODEM/topic/vara_fm_digi_s_looping/104708792 For us this looks like a VARA FM problem. Only thing we have tried was disabling or enabling the KISS Interface setting in VARA FM, but no-go. Any advice or things to check? Thank you in advance! Cheers, Tomi OH2TJS