I'm having trouble with this myself. My website is not being indexed on Google because I had some setting on and it was blocking everything. Now, I turned everything off, and I confirmed Bing is able to index my website but Google has stopped coming around. It's been 5 days since I turned everything off and nothing is indexed still.
I'm now turning things back on but I'm not sure which settings to do. I allow all AI crawlers, put a rule in for allowing Known Bots to bypass my rules which should allow GoogleBot and BingBot to come through right? I turned Bot fight mode on, am i suppose to, or does that block GoogleBot and BingBot?