Mouse map scrolling issue on all Classic SC games

[CaesarAug]

I’m noticing that map mouse scroll on all SC Classic games on Windows 11 Pro has a strange issue: it can scroll the map up and left, but not down and right. Fortunately, the arrow keys work as expected.

It’s definitely a SC Classic issue, never experience this in the SC3 games series.

Any known fix for this? Thanks.

EDIT: normally playing on a 4K 27” monitor @3840x2160 (200%), switched monitor to 1920x1080 (100%) and tried games @1920x1080 windowed mode. Mouse map scroll works in all four directions.