Since upgrading my main router to 2.9.31 I am experience a serious issue. A ny new route I add through my outgoing (ether) interface appears with interface as unknown, even though the IP is valid and I can ping the gateway. As well as that, some of my current policy routing rules have also gone the same way. Even if I remove and re-add the current default gateway it appears as invalid and all internet access shuts down. The only way I can get it back is using the undo command.
This is very scary as I feel my router is in a very unstable condition. I dont want to downgrade either for fears it might carry the problems through to the previous version.
I have sent a supout.rif to support[at]mikrotik.com already.