I believe I found a fix (at least it worked in my case), but it involves manually editing your save file.
First, I found out that some values in my craft state became NaNs:
"ReferenceArea": {
"ContextKey": "ReferenceArea",
"storedValue": "NaN"
},
Then I removed the entire vessel definition for every vessel that had this NaN-poisoned value. I'm using VS Code, which makes it easier to make sure you have the right vessel, but if you're using a simple text editor, look for the part that starts with this:
{
"Version": "0.1",
"Guid": {
"Guid": <SOME_RANDOM_GUID>,
"DebugName": null
},
Also, I've thrown together a JQ script that will try to automatically remove any vessel that contains these NaNs: https://jqplay.org/s/5ZlWloyirhA. Just paste your save.json in the "JSON" field, copy the result and replace your save.json contents with it. Make sure to backup the save first!
Hope this helps someone... Maybe it's possible for other values to break in a similar fashion, so the script will need to be adjusted.
