(I hope this hasn't already been reported in a different thread)
Small GUI bug in Preferences > Project > Media Item Defaults
Windows 10 64-bit.
The options for "Enable automatic fade-in/fade-out ..." and "Loop source for imported items" overlap each other in the preferences dialog box.
Good (v6.64):
Bad (v6.64+dev0804):
EDIT: Confirming that this has been fixed in v6.64+dev0805 -- thanks!