Sometimes, the .gdbinit file is being declined by gdb during the core-analyzer analysis. We rely on this to setup our pretty printers. I am not sure what exactly is different to make this only fail soemtimes. I see most of the failures in the related BF are from the enterprise-amazon2023-arm64-lto variant so possible it is an AMI issue.

Google says this is fixable by running 

set auto-load safe-path .

So I am going to try that first as it is an easy fix.

Here is an example task of this failing