you added the feature of having to use gems to purchase slots on the game board?? that locks players out of what was an enjoyable experience.
you have a great game going, one i believe can be expanded on in other ways that don’t directly contradict the main point of the game. for instance adding more and different power ups that cost various amount of gems, adding new skins (like colour schemes and such) etc etc.
but this new feature is egregious and to put it plainly: a dumb move. trust me. you don’t want to go down a path that hinders player experience.

I paid to have No Ads, now the game has hexagons that must be “bought” with ads. This is dishonest and has ruined a game that I used to enjoy.

I have to keep rebooting my phone to reset the game. Many times during yet another long advert the screen blacks out and I can’t do a thing, until after rebooting the phone.

This game is great to pass up some time in my day.