[3.85] duplicated tile graphics glitch when scale quality setting enabled

[Galgana]

I noticed that when my character is facing certain directions on the local terrain zoom-in map, a young spruce tile becomes doubled.
And I haven't consumed any noaidi mushrooms recently

This happened when my settings in urw_ini.txt had [SCALE_QUALITY:1] or [SCALE_QUALITY:2]
I have NOT encountered similar graphical issues with [SCALE_QUALITY:0]

[Sami]

Oh, that's interesting, but our means to remedy it seem very limited. This might be os/system dependent issue.
The scale quality simply sets a certain SDL variable, but the actual rendering is done the same with the very same functions for all the quality levels.