When I go to fight, when it comes to opponents turn, the line just keep circling the opponent and does not fight. i have had to cancel 4x. what can i do to fix it?

Try clearing temp files and cache. If you are on a smart phone go to Settings->Applications->Monster Legends Game->Storage->Clear Cache or download a junk cleaner. Then go back and open the game and see if this fixes the issue.

Clearing the catch had zero effect.

Hi. Are you playing in mobile or in Facebook?
It happens in all kind of fights? (PvP, singleplayer map, dungeons...?)

Facebook

Oh Sean I had this problem with PVP the other day on Facebook. The player just sat there and didn't attack. The screen wasn't frozen it just didn't attack. Finally closed the PVP and played on my phone as it just didn't do anything.

Happened to me on Facebook too.

Happened to me too, today on that final battle of the maze coin dungeon. I am playing on my PC and when the battle starts the first AI monster stalls so I can't do anything but reload the game. I have wasted so many stamina points just trying to finish the coin maze dungeon and it won't let me. I had this problem a couple weeks ago too, and since then I thought they fixed it because it worked fine for a while but now it's messed up again! I cleared my cache and internet files and cookies but to no avail. So am I just supposed to miss the opportunity to beat this dungeon and just suck it up or what?