Arabic letters are not displayed correctly in MacOS 10.15.3

[Abu Abdullah]

Hi,

i have started testing my app using Javafx on MacOS 10.15.3 and arabic
letters are not displayed correctly. only title bar is correct. the
rest are just random characters (not arabic). please have a look at
the snapshot:
https://ibb.co/Yk6m3Pj

im using jfx 15-ea-5 on MacOS 10.15.3

normal swing application is working fine without issues