Text Font/Item Shapes changing automatically

I am using a Galaxy S9+ with the paid version of KWGT. Starting today my widget kept changing the font of the text to a normal type and shapes of items to a normal type. I checked the preset widget and it was all normal and fine but whenever I save it, it's fine for about 30 seconds but after that it automatically changes the whole widget to a different and default looking font and shapes of items. Why is it doing this?