Sansa Clip+ (Rockbox 3.7): Freeze after fast-forward or rewind

[cubic]

Hello,

My Sansa Clip+ with Rockbox 3.7 freezes after I fast-forward or rewind. I have to power off and power back on to get things working again. This happens when I play back from the Clip's own flash drive.

I usually play my audio files (spoken word stuff) in high-speed. The freezing has happned when my audio is on high-speed  playback. I cannot remember if the freezing has happened when playback speed is 100% (normal speed).

Please help.