Based on the bug reports on servers crashing with 1.16.201 there may be a need to validate/update the linux libc library to match what the bedrock server is now expecting:
I noticed that the latest versions of libc are 2.28 for debian buster but are 2.31 for ubuntu 20.04 so if the developers are building /testing on ubuntu 20.04 I could hypothetically explain the descrepency.
I took the dockerfile created here and change the
FROM debian to
FROM ubuntu and I'm getting build errors where I run out of space in /va/lib/docker/tmp (?!) so I may not be able to go that route but I will try running a game that is erroring on a new 20.04 VM I manually create to see if there's any change.