We have found a problem with the way VPHOT handles the GCVS variables so we recommend the observers to stop using the GCVS for now to generate reports.
It looks like, due to different star name formats, the same star might be reported twice.
E.g. V0362 Her could be reported as such (VSX) but also as V362 Her (GCVS) and we would end up having a duplicate observation in the database. Actually we do have a lot of them :(
Making VSX and GCVS mutually exclusive would be a way out of this problem. If you want all variables, choose VSX. If you want GCVS-named variables, choose GCVS.
HOWEVER, the GCVS option is also giving several unwanted additional results (such as ROTSE stars with no AUID) and WebObs takes those names as valid thus generating new duplicates in the AID (Those names are alias names of other variables so the AUIDs of those other variables are assigned to them).
We need to investigate why these ROTSE stars (and maybe others) are being displayed in VPHOT as if they were GCVS stars when they are not, but until now, please, use the VSX option and not GCVS to display the variable stars in your image.
PS: Using VSX will also give you some duplicate results (specially in the case of ASAS and NSVS stars) but that is another problem that we are taking care of.
American Association of Variable Star Observers