Running latest Patch/version, loving the mod so far.

• Coin store Spidertron / An active spidertron (perhaps interior one) when doing the equipment space research appears to cause a non-recoverable error. When moving it to inventory it allowed the upgrade but deleted any equipment left in.
  "Error while running event the-cave::on)research_funished(ID 22)
  Item is not a took
  stack traceback:
  [C]: in function 'index'
  __the-cave/scripts/equipment_grid_upgrades.lua:93: in function 'snapshot_inventory'
  the-cave/scripts/equipment_grid_upgrades.lua:191: in function 'upgrade_vehicle_entity'
  the-cave/scripts/equipment_grid_upgrades.lua:283: in function 'on_research_finished'
  the-cave/control.lua:775': in function (the-cave/control.lua:773>

• Inside Train interior biters spawn due to infestation (not sure whether intended or not) gets a bit rough at behemoth biters

• Explored much of Fulgora without an Fulgura Ruins to Progress the tech tree (Found multiple Ancient Vaults, Nuclear Caches, boss rooms etc), to the point biters have evolved to behemoth due to nest destruction. Does it matter how the stone is mined? (Manual, rocket, art, gun? I've tried all to no outcome), not sure whether some of the recent scrap ore changes conflicted (but hadn't already got there do can't test)

• Behemoth biter spawns (~200) due to single block manual mining can be rough (instant death), but by then spiderton make is relatively safe, makes mining difficult once evolution maxes as mining in a spiderton is a bit clunky (manually).

• Also Reinforced concrete = infinite coins relatively easily early on / To the point where being able to change the sell multiplier would be helpful - (selling 100k concrete at 100 per click) - however this is likely true for circuits too at a certain point (I like the acceleration)

let me check

Thanks a lot for taking the time to report all five issues — it’s genuinely been really helpful.

I’ve now fixed the first one, which was the Spidertron equipment-grid upgrade crash and the equipment being lost during the upgrade.

I’m working through the other four issues now and I’ll get the fixes out as quickly as I can. I’ll keep you updated as each one is ready. Thanks again for such a detailed report.