The latest version of HexEditor plugin causes the following bug - to reproduce:
1) start Notepad++
2) press the Hex-Editors button on the Notepad++'es tool-bar to activate the Hex View
3) press the same button again to deactivate the Hex View
4) now move the mouse cursor to Notepad++'es menu "Edit" or "Search" and click on it. The drop-down menu starts to blink constantnly. This is the bug.
P.S. I even removed all plugins except HexEditor.dll to ensure this bug is caused exactly by the Hex-Editor.
Actually, it's the same bug as here:
(there was no need to create a new thread, sorry)
I confirm it too. Thanks for the report.