Thank you! I've been getting a lot of feedback on the tutorial and the general sentiment is that it's too hand-holdy and verbose, I'll try to fix that. Unsure what's wrong with the second screenshot, WAX should be playable there. Out of curiosity, do you remember if the tiles used to play WAX were bought in the shop or duplicated with a rune? There used to be a bug around adding tiles to your deck that made some of them unplayable, but I thought I fixed that months ago.
Viewing post in Jargon (Beta Demo) jam comments

Other bug I found:
This bought "IN" is staying on the board even when I remove it, it's not game breaking, I can move it and it will be considered placed but if I click it or right click it stays there with a shadow below it. I have the +1 hand size perk if it matters.
By the way this game needs the ability to see the board once the game is over and also a log to see what triggered what:
at the end of this game I used the backwards spelling perk to spell "DENS" and it turns out "SNED" is also a word so both counted and both were vertical and both retriggered so I unexpectedly completed the final round in a single turn by placing down 2 tiles, it would be cool to see the math/reason behind how many points you get.