I've restarted several times now. I thought the Pi was OK but I had been using a personalised version. With the official version I get the "undefined" there also.
Everything looks ok. I had a look in profiles.db and the clients can all connect. I'll have a look in the code to see if there's anything that sticks out
No need to update now because this release fixes a bug in the upstream INDI Web Manager but StellarMate uses a modified StellarMate Web Manager that is _not_ affected by this bug.
Did that to me, I flushed history/cookies and restarted browser and correct drivers were then displayed.
Equipment
Sky Watcher Esprit 100ED APO
QHY5L-II Mini Guider
Pegasus PPB, DMFC
Xagyl Filter, LRGB+Ha
CGEM DX
RP4.4
William Optics RedCat 51
Star Adventurer
RP4.1
Software
KStars phd2 , Ubuntu, StarTools, Mac OS
AstroDSLR AstroGuider AstroTelescope, AstroImager, Astrometry