I run a private dedicated server for experimental. It has MMG storage and Basebuild Plus 2 installed. We had spent many months building up bases and loot stashes, so the save data is quite weighty. My client auto-updated to 1.27, so I updated the server as well. Trying to start the server caused a crash, apparently while trying to load dynamic_000.bin

There was no error output - but based on what I could see I think that was the current message in the server console when it bailed.

I would start the server on one of local servers via a batch script, which would archive the entire mpmissions folder to a timestamped archive every time we started the session, so I have a great deal of backups.

By starting the server without the mods, I confirm that it could parse the files and start, obviously without the bases or any of the stored loot. Restoring an archived save back over this restored the crash.

Deleting the entire install and installing a fresh copy of 1.27, then extracting the same archived save over it had the fascinating effect of apparently crashing on dynamic_001.bin instead of _000

The server appears able to run with the mods but unable to load the old save files.