After using the map to check store hours I was unable to close the map and return to the game. The mouse cursor disappeared and the esc key did not work as intended, instead bringing up the pause menu, which at one point flickered at an uncomfortable rate. The inventory was also accessible, and both the inventory and pause menu worked properly and had visible mouse cursors. The character was able move despite the map being visible as I could hear their footsteps.

For reference, I was on my farm when it happened between 20:00 and 22:00, and the issue occurred after clicking on Ishikawa's store for more details.

https://youtu.be/M94X_h05H74