I'm on Windows/Chrome. No notable brugs or "level clearance" softlocks. I've also noticed no typos (or "typo's" as the accuser below ironically spelled it), and I consider myself apt at spotting them.
HOWEVER, as someone mentioned, you can't grind credits by repeating levels. Unless you cheat by looking up tutorial videos the whole time you play this game to know exactly what to buy at any given moment, it's virtually impossible to progress.
I'm currently stuck/virtually soft-locked with a party that I can't progress with. I can't experiment with new party combinations because I don't have the credits to buy new party members.
I'm going to try r_tsang's scripts to recollect credits from repeat battles.
EDIT: r_tsang's script to enable grinding the extra credits in repeat levels seems to work great