Retroarch crashed after playing on PPSSPP

after being unable to save at final fantasy crisis core, i closed the game and went to back to the menu via F1 button. after a short time retroarch crashed and i was unable to start it again. i had to reinstall. are there known issues? couldnt find this in the forum. hope this gets fixed soon. all the best ps: is there a possibility to load in external emulators? pps: i use retroarch on a win10 pc