We had exactly that a few seasons ago where the As and the Cs were visible to each other in a TTT when they weren't meant to be. Generally it didn't matter as the A's were going much faster so it just meant you were getting overtaken on a regular basis, but then a GCN rider got dropped from his squad and decided to sit on our wheel as our team at full pace was a comfortable cruise for him. We told him to sod off in chat (some messages may have been slightly more explicit than that 🤬) many, many times before he finally got the message.