KaruUnfortunately, it has not helped, also like turning all other settings to minimum, including "Advanced".
disabling FXAA in client.cfg (FXAA=0)
KaruMaybe, some day... Definitely not now :-).
to compile your own client
Karufor now, it remains only to wait, if no other solution will be found.
It should be fixed in next client patch (hopefully).
Anyway, thank you!