i have te same problam and already tryed these 2 options without success.
when you change the font of the lyrics to hebrew it works perfectly! that is, until you refresh.
ive tryed changing the font in the settings.txt file but it doesnt work. after you start the program it comesback to ariel western again, instead of ariel hebrew or david or any other font ive tryed to change it for. it wouldnt save this font setting no matter what ive tryed.
if its possible to make it remember the font setting it will solve this problem.