My game crashes every time I try to load my ironman save from a couple months ago.

[Kit_Sune7]

Description
My game crashes every time I try to load my ironman save from a couple months ago.

Game Version
Caelum v3.9.2 (at last save), Pyxis v3.10.2 (currently)

What version do you use?
Steam

What expansions do you have installed?
Distant Stars

Do you have mods enabled?
No

Please explain your issue is in as much detail as possible.
Last time I played (a few months ago I think, perhaps somewhere in October) everything was working fine. Game isn't quite in the endgame event stuff yet but I'm pretty far along. Today when I tried to launch the save the game would just crash. I can launch Stellaris to the title screen but it will not load the save (I tried several times). According to the "meta" file in the .sav file the save was last running version "Caelum v3.9.2", though I did notice Steam updating Stellaris when I launched it so the title screens says I'm running version "Pyxis v3.10.2". I am running Distant Stars and Horizon Signal and I am NOT running any mods. Other saves will load up with no issues. I would love to be able to recover this save as it's the longest one I've ever had without totally demolishing myself. I will attach any documents that seems relevant below. Any help is very appreciated!!

Steps to reproduce the issue.
Just load the save file for this particular ironman game.

Upload Attachment
File(s) attached

 

[AndrewT]

Revert to 3.9.2 in the Steam Betas tab for the game. Can you load and play that save then?

 

[Kit_Sune7]

Revert to 3.9.2 in the Steam Betas tab for the game. Can you load and play that save then?

that worked!! thank you SOO much!! I feel so silly now--I didnt know you could revert Stellaris saves in the steam betas tab or else I'd have tried that. You have educated me. Thank you again!! :]]