Many thanks, today I played the game on WinUAE and real A1200/030 and the issue is present as on fpga systems.
Thanks again for your quick reply.
At the moment I'm working on another rum and run game for the Amiga. At the moment I have 5 levels finished and there are still bugs to be fixed. Soon the first version will be released on Itch. ;)
I would therefore like to thank everyone who has supported me. It motivates you to make more games for the Amiga. I have enough ideas. :)