Sansa Clip Firmware 01.01.35 & 02.01.35 Release

I have noticed that when I copy a WMA (without DRM) file into my v1 clip, the file does not show up on the clip. This happens ONLY in MTP mode and with WMA. When I use switch to MSC to transfer the same or other WMA files, they show up fine. Other formats (OGG and MP3) transfer fine in both modes. I’m not sure if this problem began in this firmware or is a known problem from before. Are you guys experiencing the same thing or is it just me?