While on my own turn and with the timer running, I was unable to select a target for a spell.

++ Since the latest update, MTG Arena has been experiencing multiple crashes and frequent severe lag, including roughly a 50% drop in frame rate. These performance issues persist until the client is restarted.

I have already completely reinstalled MTG Arena, but this did not resolve the problem.

Please see the attached log, which shows a Unity UI / text rendering crash.