Time has come to assault the Marianas, so I set up the Air Combat TFs and a Replenishment TF as support sailing from Wake. That TF had orders to stay 5 hexes away from Saipan. I execute the turn, and next when I try to get Air Combat TFs to replenish nothing happens. I search for the Replenishment group, and its position is 2 hexes AWAY from Wake I, still with destination Saipan.

I think it's the first time I see this behaviour. I had previously used fuel-only replenishment groups in this game, and couldn't find anything unusual. But this time the Task Force has CVEs for spare planes (the kind with no air groups) and should be operating under enemy cover.
Are Replenishment forces like Cargo ones in that they won't enter an enemy air ZOC? I don't really understand how did it end up farther from the enemy than its own base.