This may be due to the file being used by two projects at the same time.
In any case, I would like to ask you to attach the file and the projects so that I can look into your problem. You can attach the files here or in a private message on the forum.
@ptt-bds
Could you provide more details please. Which sites is the problem with and what action? Perhaps you could attach a test project so I can replicate your problem?
@botsrus Right. ( there are other types of selector's) like match & xpath. Believe it or not but that's easy, if u wanna manege this soft well, u have get get a crash course in selector's =)