Research messed up

[Joman]

The research is messed up now.
My Engineers Huts need electricity now, but i did not research electricity yet.

This is a big problem for my village!

Something is wrong with the order of the research items. This should not happen.

[MageCoerlin]

What level engineers hut do you have? There are currently three and the first two do not require electricty and the third one can only be researched after electricity

[Joman]

Ooops, i was able to upgrade to level 3 bevore researching electrity!!!
Something is going wrong here.

[Joman]

Oh, and i was able to reearch watchtowers bevor researching hunting!

Maybe canceling research leads to messing it up? (Of course it shouldn't)

[MageCoerlin]

Hey Joman, could you please supply a save file where this occurred?

[Joman]

Sorry, i have continued playing. Rushed to electricity and built windmills to save my village from breaking appart. The savegame has been overwritten now.

[Starlynk]

Cancelling research should also cancel anything that is after that specific item that requires that item you cancelled. If it is not doing that, then yes, that would be a bug

[ExplodeySquirrel]

I noticed 2 research bugs related to Joman's original comments:

• If you cancel techs from the Research Queue section of the interface, it doesn't cancel dependent items correctly and mixes up the queue order (allowing you to skip techs)
  
• Tier 3 Engineering huts are becoming available as soon as the Mathematics tech is researched, when players don't yet have Electricity. Instead of disabling just the 3rd slot, all Engineer work halts if upgraded too soon.

Hope those details are helpful!

[MageCoerlin]

Hey Squirrel, appreciate the info, but I Can't seem to reproduce this. Can you give me specific research orders that you know for sure have these results every time? I tried canceling from the queue as you did, but all dependent techs were also canceled, and I researched to mathematics, and only got the premedieval upgrade, not the Tier 3 medieval one. IF you can, that would be supremely helpful in this regard. Thanks!

[ExplodeySquirrel]

Here's the savefile where I encountered both issues: World Save - No Electricity[drive.google.com]

(Screenshot of Research Page)[farm2.staticflickr.com]
On the reseach page, you should see that Education and Quarries are unresearched, but have a bunch of dependent techs unlocked. As best I can tell, it's only when Education specifically or one of its dependents is in the queue that it begins displaying the issues I mentioned before.

Additional Info:
Here's an example tech order I was able to reproduce each time,
Start from empty queue > Add Education > Add Electricity > Add Funerary Practices + 2 dependents > Cancel Electricity > Cancel Education > Exit research screen
Result: Electricity and Funerary Practices are cancelled, but other 3 remain queued [farm2.staticflickr.com]

(Screenshot of Engineers Hut)[farm2.staticflickr.com]
Also, this shows that the Nuggets have Tier 3 Engineering Huts completed already without researching Electricity. I'm not entirely certain at what point those first became available, but I think it was either after Mathematics or Mining.

[MageCoerlin]

So this repro you gave me (Add education, then electricity, then funerary practices + 2) is impossible to do, because there are too many tech perks between education and electricity and cueing even those two perks leaves only a single slot on the queue left. Did you perhaps mistype or something? I just don't understand how to repro this :/

[ExplodeySquirrel]

Sorry, to be clearer those steps are for reproducing it after you opened the attached savefile (which has Education as a "skipped" tech and everything prior to Electricity unlocked already).

Here's one of the ways I was able to reproduce it in a fresh playthrough with no prior tech bugs:
Start from empty queue > Add Education > Add Geology > Add Lures & Caulking > Add Tactical Evisceration > Add Reinforced Shelter > Cancel Geology > Cancel Education > Exit research
Result: Geology and Lures & Caulking are cancelled, but other 3 remain[farm2.staticflickr.com]

[MageCoerlin]

That worked! Super weird, but thank you so much for bringing this to our attention