Have someone also problems with BFD in combination with OSPF on version 6?
When I enable this combination , the OSPF starts breaking every cca 10 minutes.
In version 5.20 I never had problems
Generally I don't have any issues with BFD either. At least not the ones mentioned on this thread.Strangely we are using BFD+OSPF on RouterOS 6.5 and 6.19 with no issues.