OSPF Problem going from X86 to RB1100x2/AH w/Bridge

RouterOS Forwarding Protocols
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We went from an X86 router (v5.:sunglasses: to an RB1100x2/AH (v5.12). OSPF was running on a port of the X86 connected to a switch. When we put in the RB1100, we removed the switch and setup a bridge to bridge the two switch ports together. While OSPF sees the neighbors, the neighbors aren’t getting the routes. (Specifically the default route.) Neighbors are setup as NBMA neighbors.

So, basically, the only difference is that we have the OSPF interface running on the bridge rather than a port. Any idea why this would be happening?

Another small odd problem is that the password seems to keep disappearing as well. It keeps going back to default.

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What is odd is that switching to PTMP mode fixes the problem.

These were working links with OSPF setup correctly until the router swap. Any idea what could be causing MBMA to not work?