Displacement dropping to minimum by itself, messing up designs

[Captain Meow]

I started having this several times recently with designs that were fully finished & playable.  I select another ship I have, go to shipbuilder & notice all parts are red, displacement set to lowest possible, reducing the length & making a mess! Happens now once in a while after deleting that json.dll because of "Invalid design" error.

Anyone else has such?

[Schirüno]

I had all my designs do this and if there were a lot of designs(4 in my case) the ship designer just wouldn’t load and just be stuck then the game would crash, had to load up my destroyer design and delete all the other ship designs and redesign all of them.

[Captain Meow]

Interesting, I have 10 ships for French 1895 so far & all is good there. I went creating 2 British BBs for 1898, did several 1v1 battles in them, then set a 1v1 battle against British BB I have but noticed the ship is AI-built than what I have, went to shipyard & saw this mess with displacement.