Just over the last couple weeks, I have begun to experience a program hang on typing in chat using the steam overlay. I am using linux, and it may be an OS-specific issue. Has anyone else noticed a similar issue recently?

Nothing in my system has changed in this time, and the likely culprit is a recent patch change, but can't confirm for myself. Restarting just Dota fixes it, but the program must be manually killed in order to end the process. Steam does not seem to be to blame, since steam itself experiences no performance issues, but it is possible there's an unknown interraction within steam which is causing Dota 2 to permanently hang.