Presently you can have 2 seals up for a very brief window as by design of the grace period to mimic the functionality of the old Vanilla batching.
This was working very well until 3 weeks ago when you can no longer Judge both seals. Now it seems to select only a single seal to Judge often leaving you with a dud.
Example of what I could do from Classic 2019 until 3 weeks or so ago, and this was also very similar in Original Vanilla and TBC as well as TBC classic.
IT was possible to for example have few seconds left on Seal of Command and then put up Seal of The Crusader and then Judge and you would benefit from landing the remainder of your command and then also applying the Judgment of the Crusader debuff to the target.
Now this no longer works at all and you must then wait for the Judgment CD to Judge Crusader. The former behavior we enjoyed since 2019 mirrored the Vanilla woW and TBC WoW very nicely and it was a nice function of the paladin class in PVP situations allowing us to maximize function. This was also useful in certain PVE situations, and has no impact on PVE Vanilla raiding or Aniverasary raiding that I am aware of.
Please fix!