Hitting the "Del"-Key (on german keyboard "Entf") while editing LO-Basic-Macros in IDE does nothing.
Deleting Backwards (the big arrow to the left in upper right over "Return" on keyboard) works perfectly.
I think that is duplicate of Bug 37170. I don't know into which version the fix is integrated. Try to comment Bug 37170.
*** This bug has been marked as a duplicate of bug 37170 ***
RC2 is bit by bit identical with release version, so separate items in the version picker are useless. Changes have been discussed with Michael Meeks.