I realize the issue of loading screens and undue waste of XP scrolls and other timed consumables has been discussed before, but until ZOS corrects the problem it bears repeating -- often.
By any reasonable standard, after four years, ZOS should have resolved the loading screen problem, but since they appear unable to do so, timed consumables should be suspended while players are stuck waiting for content to load.
Characters
Ta'betha (160) -- Altmer. Dedicated crafter; fully maxed.
Poppy Anne (160) -- Altmer. Pet Sorcerer.
Abbie Woodville (160) -- Breton. Pet Sorcerer.
Ashleigh Night (160) -- Dunmer-Vampire. Pet Sorcerer.
Clarissa Qwill (160) -- Altmer. Pet Sorcerer.
Alyndra Shalee (160) -- Altmer. Pet Sorcerer.
Mallea Maleficarum (160) -- Bosmer. Stamden.
Maggee Dundee (160) -- Breton. MagBlade.
G'yadda Bokka (160) -- Bosmer-Werewolf. StamBlade.
Nethanie Qyan (160) -- Dunmer-Vampire MagBlade