ingame HUD disappearance bug

First game of BTB was doing well until near the end of the game when my HUD disappeared.

I started pressing buttons to fix it and upon hitting escape, my mouse cursor appeared and I couldn’t interact with the game in any way. Ended up having to close the game entirely.

I assume this was because the menu came up and couldn’t be interacted with, but I’m not sure. I can give PC specs and settings on request.