Are you sure these maps are ranked?Yes, all maps that I currently have are all ranked/loved maps.
Are you 100% you checked it? Both Universal Offset in the options menu, and Local offset + and - while playing the map?I had never touched or changed anything with the Universal Settings, as I usually leave technical stuff out. I did try changing it and replayed the maps with an UO of 4, and it was playing as normal, no random failing. I can't find the exact number, but from testing, an UO of about -60ms and up works fine.
Just because you *think* you didn't change it, doesn't mean you didn't actually.
I need to be 100% sure you didn't.