osmo-bsc Rx RR Assignment Failure.

Configuration is Network In The Box with everything running on a LimeNET Micro (RPi CM3+), using Raspbian 10 and osmocom:latest packages via OBS. UEs can register fine and send/receive SMS, but when I attempt to make a call I see the Rx RR Assignment Failure error from osmo-bsc. The same hardware and CNI configuration works fine when used with an old RPi image that has packages from late 2019. Configs and error log attached. Would appreciate any suggestions for things to try. Regards, Andrew //