Just wanted to add that I am also having issues since last game update. Time is 15:55 GMT and with the trainer on but not using any functions my game automatically crashes after about 15 seconds. Not a huge problem as I am now only using it for estus anyway. Game seems to run fine without the trainer running.
New trainer has been posted. I just tested new trainer with new patch and all options work 100% and there is no crashing here on my computer.
best,
Cal