It crashes right after displaying the first thumbnail.
I'll send the minidump per mail.
Many thanks for the report and minidump.
I don't think FTP thumbnails ever worked reliably, and it was a surprise to us that they were enabled, which seems to have been in error. We're probably going to disable them again (so you just get icons in FTP sites), which should also avoid the problem.
We'll also look at the minidump to see if there's any issue there which could happen in other situations.
Thanks again!