Yup, D/L the daily build yesterday, and every time I go to the playlist menu I get a loud screeching noise and the player freezes. Worked for a while just playing regular tracks, but now the music will play but nothing else works (buttons/display/etc). Rolling back to Jan. 1 build. That one seemed to work fine for me.
Same here, my scrolling wheel blocks after a few seconds, keeps on playing but doesn't respond to any key. Rolling back to earlier builds helps.
A lot going on with patches: http://gerrit.rockbox.org/r/#/q/status:merged,n,z