1.16.x soft locks older saved games, 0 gold 0 levies from vassals, vassal contracts missing globally

[nullpat]

Information​

I have verifed my game files (Steam only)​

Yes

I have disabled all mods​

Yes

I am running the latest game update​

Yes

Required​

Summary​

1.16.x soft locks older saved games, 0 gold 0 levies from vassals, vassal contracts missing globally

Description​

1.16.2 is awesome and contains a ton of bugfixes, unfortunately this issue remains. Loading an older save into 1.16.x causes vassal contracts to break for all countries globally, with all vassals contributing 0 gold and 0 levies globally.
Loading an ironman 1.16.x save on 1.15.x is not possible.

Using debug to grant independence and then revassalize each vassal fixes the issue, but this fix can't be reasonably applied globally to all vassals in the game.

Steps to reproduce​

1. Load 1.15.x game in 1.16.2

Game Version​

1.16.2

Platform​

Windows

Additional Information​

Affected Feature​

• Gameplay

Save Game​

Other Attachments​