I tried to tell you on 27th sept via playstore review that the latest update of OBS studio i.e. OBS 32.0.1 and the one before it, lost the option to add droidcam as a source. Please check the images shared.
It also asks me to remove the droidcam obs plugin. Now tell us how to use this pro version with OBS. You got to do something cause this is impacting hundreds of thousands people, I am sure.
https://ibb.co/album/FgPfHD
I will try to look into it as soon as I can (which probably will only be tomorrow, unfortunately).
Which version of the advanced scene switcher are you using?
Which OS are you using?
I thought I had tested the latest advanced scene switcher release with the OBS 32 beta releases and it was working fine.
I will make sure to verify that again tomorrow.
Feel free to provide the additional information in the discussion thread!