just registered because I want to say that I can't for the life of me get the hang of the fact that B4A every couple of incremental backups (probably every time when it figures it must do a "full" backup) backs up every single one of some ten thousand folders (which are backed up EMPTY! because files only have changed in like three of these ten thousand folders......)

This is RIDICULOUS! It is useless, takes incredibly long, uses up my computer's resources, multiplies the size of the backup -- simply put, it is plain stu*id to back up LOADS OF stuff that a) contains no data and b) doesn't match the backup file filter.
PLEASE CHANGE THIS BEHAVIOR such that folders that don't contain ANY file that matches one of the backup filters are SKIPPED!
Thanks.
David.P