Problem hint (illegal characters, exists on Commons, etc) does not display after loading LuckyRename. (any change to the filename after it has been loaded triggers the hint to display though)
Personal preferences
The filename in [[:w:Image:Dark_Knight.jpg|The Dark Knight]] was not automatically replaced. This is probably because of the unusual format, this was found in a 2008 comment on File talk:WALL-E poster.jpg.
When a rename media template is removed after moving a file the file may linger in Category:Wikipedia files requiring renaming. This is a Mediawiki issue. It will automatically sort itself out. (could take days as you need to wait for the page to be reparsed) To fix it right away perform a null edit on the file page.
If a move fails (which is very uncommon due to various sanity checks, in hundreds of renames it never happened to me unexpectedly), file name replacements are still made.
Usage replacement is supposed to be skipped if there is no usage, but it always runs.
If a file has no usage moving it would fail, except the bug above canceled this one out. (who said two wrongs don't make a right?)
When declining a request (possibly also when making a request) or when a file page links to itself (for example {{Valid SVG}} causes that) a message is shown about an element that could not be found. This only concerns the interface, the edits made are fine. This is planned to be fixed.
.png&action=edit&redlink=1){kind=link}
