Logitech Spotlight

I am unable to use the magnify and highlight features of Logitech Spotlight (Which were all functional prior to Big Sur. Since then without the connector, after connecting the device via bluetooth, the slide changer and previous slides work, while the magnify and highlight options does not work. And if I use the connector, the highlight option alone works, while the slide changer buttons does not work. I did check about this in the discussion sections here, I did find one post where I got a firmware update and latest software, in stalled both, but still the problem remains. is there a work around?