I tried this again to see if I could find that "impossible" generation bug, and I may have on level 22 but I can't be sure since I can't readily pause the game and take a screenshot, so I could have just not seen the solution.
A couple of major problems I found:
One actual bug on level 25 had certain blue ores with very high hit points unhittable, as beams would actually go through without damaging them, though other ores in the same row would be damaged. This was done with a rotating hazard ongoing, so I don't know if that had anything to do with it.
Another point is the gold crown ores can deplete resources on hit into the negative, so that's a big problem since getting back into the black with some resources can be horrifically difficult since once you unlock gold ores, such as if you are forced to grind through one it can bring a resource into a negative thousands.
Case in point my blue total was down more than a thousand into the negative and I could not buy any more upgrades, I could possibly try and collect only blue to get back into the black but that's greatly obnoxious.