Omaynis, Suramond's House: there is a scroll on the shelf called Transaction History. The scroll is completely empty, but it gives training in Mercantile. Also, and probably just my personal opinion, the interior itself feels a little... random in terms of its clutter. There could be more involved with this character than I know, I'll admit, but at first glance, it seems off. The interior seems to have vanilla values for sunlight, much brighter than the other interiors
One thing I noticed about the Bloodstone Pilgrimage is that falling doesn't do damage to your health unlike jumping (unless the fall is from high enough to get past your acrobatics protection). Does the scripting allow something like that?
A lot of npcs with Necromancer class do not use thematic summon undead spells. Some of them have summon daedra instead of summon undead. Some have both but use only summon daedra. And some lack any summoning spells at all.
Does not know any spells at all:
TR_m3_Reynard Valtienne
Does not know any summoning spells:
TR_m2_O_Azmodel
TR_m3_O_Armando
TR_m3_O_Deer_Lai
TR_m3_O_Foralia
TR_m3_O_Hjoorla
TR_m3_O_Zuls
Does not know summon undead but knows summon daedra:
The Weir Gate Focus Lens is the unique variant used in the Ando MG. This one is a generic used misc (used 5 times in TR_Mainland) with no script and also has no value
In the "Letter of the Law" quest you're supposed to find goblets in the egg miner's boat, but there are no goblets to be found. No amount of taking, placing or eating the eggs led to the appearance of a dialogue topic with the miner. You're unable to confront the miner about the eggs, which forfeits the final questline reward.
In the next quest, "Writ for Counterfeit," the counterfeiters in the sewers attack on sight. No indication is given that there will be dialogue options with them if they're calmed. This forfeits the second bonus and the final reward.
I bought and freed the slave called Tharmadalion. After freeing him, exploring available topics, I started the "Of Cats and Wood Elves" quest, and, since the slave is gone, and the slaver doesn't want to hear anything about that, the quest is stuck open
From what I see, there are journal entries for freeing the slaves in TR_m4_Arv_SlaveMistake, which apparently finish the quest, but they are not used in the "go free" topic.
Many TR locations do not have any response to the topic "specific place", which is inconsistent with Vanilla. This is particularly frequent in areas modified by the Embers of Empire expansion. These are the affected towns and villages (skipping a few hamlets):
One of the underwater rooms of the grotto containing a locked chest and two clams cannot be entered due to the opening being too small for the player to swim into.
The book series "Varieties of Thought" is very bad and completely immersion-breaking, both in terms of writing and content. I think the three following assets should be deprecated (is that how it's called?):