My Mrs has been having some of this at work. She supervises a team of mainly female staff.
The first problem was with lady who apparently bats for the other side. She had an issue with my Mrs, (it has transpired that the same has happened previously where she has had female supervision, and she has been moved around as a result. When she left she gave my Mrs both barrels at the exit interview. Questions were asked from above, but nothing was found to be out of order. It now transpires the the woman has taken her next employer (female) to a tribunal on the grounds of sexual discrimination.
Currently she is going through a similar experience with another one of her team. This one has also been "recommended for internal transfers" several times also, (for internal transfer read being moved on due to being a pain in the arse). Similar accusations are being made with a similar lack of substance. However, it does not take a genius to work out that "the no smoke without fire" argument will at some poiint get deployed, and that there will eventually be some impact on the old girls career.
Seems to me to be a practice with good intentions but a potentially suspect outcome, which in my Mrs employers case leads to poor staff being shuffled rather than dealt with properly, and to that extent is counter productive. Wifey is now contemplating shuffling as opposed to doing her job properly and standing her ground.
The company is a large multinational with high professional standards and a permanent HR presence on site, and these incidentas have occured some time apart.