My personal issues with Flycast

I have three issues with Flycast: 1: whenever I use the Fast-forward feature it always crashes, no matter where or when I use it. Example: https://www.mediafire.com/file/nkb0oe79r8sdw6d/Flycast_Fast-forward_crash.mp4/file 2: you have to disable Threaded Rendering to use savestates, which I think should be fixed to allow the use of this option (after a while, my savestates no longer work with the game I used them in). 3: whenever I boot into the BIOS it always tells me to insert the game disc despite the fact I loaded it from a game. If these problems get fixed I would be more than happy to emulate Dreamcast on my phone.