not playing and English words changed to gibberish

I know I will be told that I have changed something but I haven't. Every time I come back to M4 after a few hours or a day, the notes will no longer sound in my scores so I must restart M4 and then it works.

Also, every few days I will open M4 up and all the English words in my panels will be replaced by single letters so that it is impossible to read anything in the palette, properties or instruments panels. The only solution is to return everything to factory settings and everything is restored. And no, I don't change a thing. It just happens and is a bug whether you believe it or not. At least there is a way to restore things as I wrote by restarting for sound and returning to factory settings for getting rid of the gibberish. Just some bugs.