Well, since we got a free mutation on all modes

[Rhyme-1300]

Supposedly this works:

@Tangor-21102

I found a simpler temporary fix to bugs with ramps and ground textures: in “regional settings - formats - additional setting” you need to set “Decimal symbol” to “.” (dot). No need to change a whole system region/language, no need to reboot. As I see it, it is a bug in XML parsing, that uses system settings to parse real numbers.

(Patch 4.11.0 co-op is full of bugs - #100 by Tangor-21102):

Failing that, Kerrigan seems to be the best. She can leaping strike up/down ramps and omega worms allow ally and your army units to ignore them.