That background is enlightening, thank you!
I could see how that could clog up the system potentially.
I did try multiple file formats with no success unfortunately.
Thank you.
Edit: 1.) Just got reported for Trolling.
2.) Sorry for my delayed reply; had to wait to post this reply because it’s my “third in a row”…. Even though I am replying to different people and conversation strings.
… This forum and the support site are in rough times, huh? 
Yes, the hashtag you dropped in that post certainly wouldn’t have helped garner empathy, to be honest…
Not to worry! For new users there are hurdles to jump over as attempts to curb spamming on the forums, usually takes about ten minutes to get over. Replying directly after your own post to no one in particular generally drops off once you hit the first trust level.
Oh thank you, I did not find that before.
I know Blizzard doesn’t typically send emails, but I suspect players in hiatus weren’t checking the forums.
Regardless, I cloned well before that successfully. Circa 2021 when the service was first offered as TBC was about to come out.
My characters were fine in 2022. I was subbed thru ~August 2022. …. A wild guess, but I suspect the character got bugged during WOTLK or Cata prepatch?
I was all gravy in mid 2022, after they closed the cloning. Now, I am not gravy.
But who knows, apparently.
Thanks for the link and thank you!