:nth-child(even/odd of <selector>) errors

[Legion4444]

Describe the bug
Cannot use :nth-child(even/odd of selector) where selector is anything other than a tag (.classes, #id, :not(), etc)

To Reproduce
Having something as simple as:
.test:nth-child(even of .test2) { background-color: white; }

My particular case has me doing something like:
.class:nth-child(even of .class:not(.class2)) { styles; }
Which works fine in the browser, but I can't actually use it since we use this to bundle/minify all our css.

Expected behavior
Should not result in errors.

Screenshots

[MattOpen]

@Legion4444 I am facing same issue at a client system. They work with B&M Version 2.8.396. Did you get the issue with newest version as well?