Why am I not advancing when I win a round?

You have probably got the maximum crowns from that round. You will need to play the next round up (the more expensive one).

Guest one means Trophies, not crowns, once you reach the max humber of attainable crown you can not gain more until you move on to the next stage to obtain more through winning, if you lose on the first round of a new stage you will NOT lose a trophy, but go back a stage to get more coins to play again for a chance to win then you lose a match from a stage y ou already played then you lose only the amount the game shows on the stage per the main lobby when you select a stage, it shows how many you can win and to the right the nummber you lose when you do so and can get back on next round if you win. Again to continue on that, if you lose 5 and only can gain say 14, then you only get that many back when you win and must play to win again to get that one last trophy to max it. Losing round after round to the point of having none left will not lock up the stages that you already opened, so once unlocked it stays unlocked. That is afaik and understand as a de facto Team Leader of "the great ones"