HoMM3 HD bug reports.

When creating or joining a tcp/ip game in hota, the game window freezes completely with the cursor as an hourglass. My game and I are visible to others, but my window is frozen and nothing can be selected in it. This wasn't happening a couple of days ago; I haven't installed or updated anything, and no crash log is created. Everything works without the HD+ checkbox; SoD with HD+ also works normally—the problem is only in hota. I tried installing other builds and changing compatibility settings, but it didn't help.
UPD: everything started working; I still don't understand what the problem was.