In the documantation it is written:
Double quotes (") and single quotes (') are not allowed in Keyword Filters.
Which is fine by me, but it still lets you save the collection and run it even if you put Double quotes (") and single quotes (').
It will be nice if Keywords Filters will be checked once the "save" or "save and start" button is pressed, and give an error in the GUI saying "please fix keyword", as at the moment - the task would run forever but will not collect anything and will be stuck.
Sarah