OpenShot crashed when return the playhead back while reading

[Mojazz77]

I was using two tracks (one audio, the other a lot of image file)... I was reading the project and wanted to go back few seconds (playhead) and then OpenShot seemed overclocked and then diappeared, crashed! I load sure a lot of image file to illustrate this audio with animation, fades.... The clips are enough short maybe it is too much for openshot? Some thing strange is that sometimes OpenShot doesn't retain the last opened file, then you have to use "Open Project"!