It was more visible before saves when I left fullscreen to go to another tab and it seemed to get more and more broken each time
Pre-saves I couldn't click out of the window (popup) when toggling to fullscreen, could only get out of it by pressing esc which.. also takes it out of fullscreen. Over the course of all this the buttons seemed to become misaligned or shrunk or, not entirely sure but they didn't work right. - Applied to all buttons in the game, shock, ash and settings were the easiest to see, being the only ones I'd press at that point.
I didn't poke it so hard post saves because I didn't want to deal with it, but buttons clearly still didn't play nice- mousing over didn't actually give the option to click, they highlighted for like one frame after a delay if the mouse started from the corner (if the mouse stopped on this one frame it stayed clickable- if the mouse moved off then went back it couldn't be clicked again), basically non functional, something to do with scaling is my only guess.
For other buttons, the right half or left quarter didn't seem to be clickable all the time
For Iron, yes at least when the rock reforms. For ash which I obviously watched more - it feels there is a little delay before, when filling with ash/heating, maybe 3/5 or 3/4 of the delay, but also a little delay afterward when opening up again - every part of it needs to be worked into the base time, you really don't feel it until you get far and not so simple things ('the respawn time of a rock') start popping up as hinderances - try doing ash the 11 (?) times you need for a dark glass increment and record how long it takes even with a fast speed- it's easier to see with larger tests like that
As a small addition- heat seems to drain very fast in the update I played? Not sure if it's counting multiple times or taking an extra when it shouldn't- capacity was lower and harsher than the point you'd want, which I know was changed and I'm fine with, but I think it went a little too far. Perhaps wouldn't be such a grievance if the rate of heat consumption behaved itself
Hope it helps