I have been doing a ton of testing on cav and hc and do not see the issue showing up at all.
What I am looking for is if someone has a series of reports (not just a one off) that can definitively prove the issue to be present on horsed units.
I will be testing archers today to see if they are there as well. I am betting now that this issue only effects troops classified as infantry in the code. That would make the most logical sense to me from a programming standpoint.