Just to make a thread out of similar issue so it's in one place, this is largely how my own dominant playthrough attempt has gone, I haven't been getting rollback errors though, but my upgrades have been hogging the bench for several days past what they are supposed to until any characters have an event.
I also for the life of me could not figure out how to book a venue no matter when I Walk, no matter who I attempt to Talk to, on the attempts that get to 'Ask Her Over' on the dominant side.
Viewing post in OutGrow - a Giantess and expansion game comments
Just checked, change a thing recently and accidentally disabled some triggers, I need to be clearer on the venue, its something that happens in the story, both things should be fixed in 15 ish minutes
As a disclaimer, dom route is the less polished of the two and is still under active development, if you find any more issues please let me know.