This occurred about 5 minutes before this post.

I took an escort mission from Dau I-7 to Deneb I-12. The convoy launched as normal, and until it jumped to Dau O-6 all was normal. Before it jumped to Dau O-6, I jumped to Dau P-14, then to O-6. In that much time, it had apparently gone through Dau O-6 and into Nyrius B-10. I followed, and in the time it took my cell to charge and the jump to occur, the escort had already reached Nyrius O-15. At this point, I gave up on the escort. In the 20 seconds before I could jump back to Dau, it had already reached Verasi C-2.

This is clearly very abnormal behaviour, as even players in Greyhounds cannot travel at such speeds. Convoys definitely don't. It could be linked to the last update.

[08/27/22 21:17:15] You are now in Enistan Orbital (BioCom Research).
(TA) Saving data.
Ship Repaired!
station error 4: Don't know what that item is.
[08/27/22 21:17:16] 134 credits deducted from your account.
[08/27/22 21:17:17] Ship auto-repaired (134c).
[08/27/22 21:17:54] *Remem Roto jumped to Dau System, Sector O-6
[08/27/22 21:17:56] You are entering Dau P-14

[08/27/22 21:18:06] You are entering Dau O-6

[08/27/22 21:18:53] You are entering Nyrius B-10

[08/27/22 21:19:37] You are entering Dau O-6

Copy from my errors.log, with some spammy stuff from a plugin + chat messages removed.

So the convoy jumped to Dau O-6 at 21:17:54
I entered Dau P-14 two seconds later.
By the time I jumped to Dau O-6 10 seconds later, it had jumped to Nyrius B-10. Usually I can travel this exact same route, and when I enter the sector my escort convoy will be at its jump-in point.
In the next 47 seconds, the convoy had already gone ahead into the next sector. This is again not normal, as anyone who has taken escort missions regularly can confirm.
When I jumped back to Dau O-6, 46 seconds later, the convoy had gone through Nyrius O-15 (something that usually takes about 90 seconds when the sector is active and longer when it's not).

I could not replicate the bug with other escort missions.