I've been having this issue for a while as well:
Though this manifests only in the 'Local Browser' for me. Connected to a site in 'Remote Browser', deleting files via "Del" key or right-click works as expected.
Local Browser:
Press 'Del' key - does
not work.
Right-click, Delete - does
not work.
Right-click, Explorer menu..., Delete - does
not work.
And by "does not work" the mouse cursor flashes a very brief moment to the spinning circle, but FlashFXP does nothing and the file remains.
Remote Browser:
Press 'Del' key - works as expected.
Right-click, Delete - works as expected.
I'm using 4.3.0 b1917 (tried 1918 from another thread). Here's the log
Code:
[2013-01-30 04:34:48 pm] Log Opened
[2013-01-30 04:34:48 pm] Winsock 2.2 -- OpenSSL 1.0.1c 10 May 2012
[2013-01-30 04:39:04 pm] Log Closed