Hi, it's me, FVS, the solo dev of Ballatory!
This update fixed a bug where you may not be able to unlock a skill tier due to "not spending enough skill points".
Cause: there are skills that require a certain stage. Somehow, the game didn't unlock those skills for you when you reached those stages.
How to fix: if you think you encountered that bug, here's how you can fix:
Update the game to this version (1.0.8) or later
Re-launch the game; make sure all the modules you ever unlocked are being unlocked in the current prestige.
Do a prestige. Revisit from Tier 1 and look for newly unlocked skills. Spend Skill points on those skills so you can unlock a new tier.
I'm sorry for the negative experience 🙇♂️
Thank you to the players who reported the bug.
Special thanks to Locdown for providing the data needed to identify the bug.