What bugs/issues did you encounter:
What is your FM version: 19.3.4
What is your FMRTE version: 19
Which operating system are you using: window 10
After the update, presets I made went blank so l made the same presets.
Those presets work well before update so I don't think error occurred because of that.
As you can see in the preset2.png when I click the custom preset menu, 'preset...' button pops up.
In the preset manager, I cannot find any buttons about xml. Only thing that I can find in the preset folder is .json