Idk what to say but just look at the Screen . I play on Pc with ''BlueStacks'' App . How can i fix that , I can even see my Char or Monster or Npcs....
https://gyazo.com/c5d8ada78a1ddb0d19246f2fb0b4522d
Did you download special version of bluestucks that support android 5?
Looks like you might have a problem with graphics on your PC.
Idk what mode you use OpenGL+se or fast DirectX.
If you have new computer then just update your drivers to OpenGL 4.5 and DirectX 12 or better depends on your hardware.
*Please note that on older PC like from 2015 the update of drivers are discontinue by Microsoft and Amd/Nvidia.
Also you can't fix it if you have on board graphics adapter integrated like the AMD HD series.
Consider to try Nox that supports android 7 and have better control in fast DirectX mode.
If you use emulator on older less powerful PC then consider lower your specs.
Like in the half , exemple if you have 4 cores then put 2 cores at the emulator.
Same for memory , 8gigs then put 4gigs. Lower the screen resolution as well , 1280x720 or lower,fps range from 45 to 60.
Good Luck.