Okay here's my feedback on this version, aside from the above no specialty and group training bugs.
Other than those two things I didn't really come across any major bugs so most of this will be personal opinions on UI and gameplay. That said, even though I unlocked the crown jewels I have no idea what secret stuff there is involving them. I looked around and couldn't spot anything. Don't know if it's obvious and I missed it or if it really is hidden.
The inefficiency at the end of the day is really prominent, I think because of the text size. Obviously this gets better with an accountant (and other info coming in) but the large size and the fact that it's the first feedback you get in the game makes it seem more important than it is.
Doesn't seem to be any gain at all in the booths without a trainer. Might want to adjust to a slow accumulation? I do like the trainer and what it brings and how fast it gets with a costume so this is a toss-up really. But in the early game no improvement at all feels kinda bad.
Backstage leader seems real strong. Having 50 energy back with, I think, a 70 trainer and one upgrade. Maybe a lower energy raise mixed with some other bonus? Again, this works fine in keeping a smaller stable early (which can be necessary when filling backstage roles) so it's really also a toss-up in terms of design.
Backstage girls don't make money(for themselves). This can be problematic if you want them to take classes to keep up with the other girls. However, pulling backstage girls periodically to put them in booths to make the money to take classes can potentially make for interesting gameplay.
The backstage girls thing is really cool. I really like it, however it is sort of easy to throw them in the back and kind of forget about them since they grow automatically. Maybe they could hit thresholds that require them to reacquaint themselves with frontline work before they can be surpassed. Related to openness? Or other skills? Or classes? Or specific objectives? I'm spitballing here.
Bug: The retraining traits investor perk does work but it doesn't show up instantly, only after refreshing the screen. Also it says retrain 3 but I'm not sure it used any currency at all that I could see, and it did not increase in cost as it was supposed to.
That's it for this round, overall a really nice addition with the backstage and the crown jewels. The backstage stuff is powerful but seems streamlined enough that the bonuses don't come in too fast, and I like that crown jewels is a separate gameplay mode.
Oh yeah, I see you removed Zoom from the booths. I know you've mentioned how much of a pain it was because booths 2-6 weren't working and you had other stuff you wanted to work on. To me the Zoom represents the dichotomy of the porn game, in that it is utterly irrelevant to gameplay while being, I would argue, critical to the porn. The ability to pause and zoom in on a particularly hot sequence really helps keep things hot. Just my opinion.
Overall, let me say, some awesome stuff in here. Game feels complex without being overwhelming. Brokers are starting to feel a little bit irrelevant, if still useful. Investors feel good, and backstage feels pretty essential as of right now. I wonder if it might be more beneficial to allow backstage position unlocks over multiple tiers so they don't feel like they're sucking up all your girls immediately?
Anyways, this is already too long. Awesome job, as usual, Disgruntler. And again thanks for taking up the banner on this game and doing such good work with it.