I got my only accusation of racism as a school counselor over schedule changes, and upon investigation, realized where it came from. I was denying schedule changes according to the written policy, but certain students (mostly wealthy and white) appealed over my head to a vice principal who made the schedule changes they requested, so it very much looked like some students were receiving favorable treatment (which they were, just not from me).
Unfortunately, there was no denying that the school and district had issues with systemic racism, which made it understandable that parents would become frustrated.