I'm copying comments from one mod section about this weird issue I've encountered. Anyone knows a solution to it?

The vanilla campaign keeps crashing on me with both this mod [Expanded Arsenal] and other new units mods enabled. Whenever they are involved in any battle, manual or automatic, even when I try to access their entries in the encyclopedia or just search for them in it. I suspect it has something to do with dlc factions because I noticed it's shakran and oathbound new units that do this. There is no problem with them in other game modes.

Yep, can confirm it's a campaign issue. Both the vanilla and revelations campaigns crash on me when I try to interact with shakram or oathbound units. And then invasions campaign is fine with shakram units, but crashes for oathbound ones. And it's the opposite for the latest campaign - no issues with oathbound units, but crashes for sharkam ones.

In other words, campaigns seem to be unplayable as each time you interact with [new] units from a race that, I suppose, are not meant to be there, it crashes.