In the prehistoric section, in the little cave, there is one bolt I am missing and I have scoured it, but I cannot see a bolt anywhere..

I played a couple of time without this bug, only today it started appearing. I can use it once, it starts recharging, and when recharged, it disappears. I'm almost 100% the game at this point, only a couple of hidden cats left in a couple of eras

As titles suggests. If the devs would see this (hi) I think it would be so cool to have an official steam point shop item of the Fofino cube rotating loading screen, ♥♥♥♥♥♥♥♥ would i buy that so quick!

Definitely not the first I've played from this dev, but the first I've ever had to ask for help on. The hint system is beans. Everything is zeroes in terms of cats/nuts/bolts on the sidebar but I'm apparently missing a leaf or something to get from industrial to the next era? Really? I'm missing a critical progression find that apparently requires 100% and the hint system doesn't even acknowledge it? Well I'm lost. Kinda close to just binning this one honestly but please help me out....

I got the 100% achievement, but not the one for getting all the Messed Era cats in the future. I triple checked and they're all gone and all areas say 0 left, so I fear it's a glitch.