New Beta 2253
One fix removes unnecessary refresh if a subfolders is modified. (D:\Folder was refresh when content of D:\Folder\SubFolder was change. since Windows update the date of the parent folder of a folder that are changed) Now the changed item is refresh. instead of rescanned.
One fix fixes (maybe) a very very very rare crash issue during file system scanning, If Filesystem scanning is started (automatic, because of filesystem changes) after another filesystem scan is completed but before that scan have had the time to update UI, (AND if files was removed between the first and seconds scan..) So many things must right to trigger this and also very timing sensitive, There was a < 0.1ms grap where the new filescan could sneek in before a previous scan had started to update the ui.