Hi Bablo,
I think there are some header requests are being blocked in BAS.
Please check this image
1st image is request header from Normal Chrome
2nd image is request header from BAS chrome
Can you show me how to fix this?
Finally I ended using (it's also working for different languages of Recaptcha challenges) if someone searches for the same:
">CSS>iframe[src^=' https://www.google.com/recaptcha/api2/bframe ']>FRAME> >CSS>#recaptcha-verify-button"