My server crashes on startup under 1.27

[Schrodinger]

For months now I have been playing on a private server I host in my own home. Various friends jump in and out of it too. It runs BBP2 and MMG storage, and has been flawless for months. I have a massive base that I have put a lot of work into. I start the server every session, and the start script automatically backs up the mpmissions folder EVERY time s I have a huge list of timestamped backups stretching back months.

Its an experimental branch server, because when I set it up experimental was the way better build.

Today my experimental client auto updated and wouldn't connect to the server as a result. So I updated to server. In the past updating the server has not broken the saves.

The server now crashes on startup, while trying to load the dynamic_000 file.

I DID get the server to start by removing BBP and MMG from the startup mod list, which obviously meant when I connected my base was gone along with all my stuff.

Adding the mods back to the modlist means the server still starts, but without my stuff.

Restoring the old saves back over top of the mpmissions folder causes the server to crash on startup again.

Anyone have any ideas? If I have lost months of my persistent world then I think I'm done with DayZ

[ast]

I don't host a server but the last update brought some major changes and was basically a complete overhaul, thus there might be some compatibility issues with older saves.
I had a char on Exp that lasted for about three years because Exp servers never get wiped, but one of the last updates (I guess it was the slot-changes) finally broke him...nothing lasts forever

[Smokinall]

try just removing you mpmissions/map/Storage, just drg to desk top as to not delete it, upload files and try to start, next would be the init.c file same process, upload files and do a steam update and try that
last update was a server wipe so something there could effect it

[Kilroy5150]

I finally had to build a batch file that integrated wiping either storage_0 or storage_1 whenever i was doing any changes because Dayz can get so freaked out and crash (sometimes) with the smallest of changes. I remember doing something wrong with init.c once that just caused it to constantly crash and restart.

[Schrodinger]

I started a Livonia server that ran fine until the first instance of adding a BBP item to storage at which point the same issue reproducibly started occurring on that server too

By rolling back my saves to before then I could start fine

It’s definitely the BBP mod and the days devs and BBP authors have both confirmed it

They are working on a BBP update that should fix it

[_KC76_]

As AST said, v1.27 Experimental includes many changes to the game, and those Mods are no longer compatible. I had the same issue of the server crashing upon startup initialization, and found out I had to update a few of my mods to use the new game updates properly. Most notably, and which would seem to apply to your listed mods, are Backpacks. Backpacks got a huge update, and any backpack mods will need updated to work going forward.