I got the same problem. The hard drive was created with cfdisk and mkfs.ext4 on Arch Linux. With v0.69 the file system displayed is ext3 and I can't browse files. With v0.68 everything works fine and the file system displayed is ext4. But I was recently visiting a friend and used v0.69 to mount the same hard drive and there it worked flawlessly. Also if I recall correctly I even used v0.69 on my system for a time and it worked. The issue doesn't seem to be reproducible on every system.
Cut not working if Java-program observes clipboard