Zend certified PHP/Magento developer

Teams member being removed everyday automatically

A single employee in our organization keeps getting removed from a teams group and I have to manually add her back everyday. I have looked at as much as I possibly could to try and see if there is something wrong but I don’t know exactly what to look for. I think its may have something to do with how she is signing in, but I am not sure. any help would be a huge help, thanks!