First thing first, thanks for the ammount of work put into all this.
Bugs
Npc tend to get stuck on other npc corpses(either allied or ennemies) leading to difficulty targeting them/issue moving character accross the battle
During a battle and after getting downed Edér was brought back thanks to a "Second Wind" (sorry if it's not the right name I roughly translated from the french name of the ability) and by doing so was out of combat while the remaining hostile npc got stuck in a loop and pretty much soft-locked the game (forced to reload before the fight)
A lot of text "X attack Y" can get spammed in the combat log
Feedback
The Initiative stats isn't clear about what affect it (I presumed Dexterity and action/attack speed would affect it but no idea in what kind of way). It would help to have the tutoriel/tooltips/entry in the encyclopedia more explicit about it.
In the same way regarding turn orders/being able to get multiple turn during a single round, attack speed modifiers (such as the monk swift strikes, barbarian frenzy, Two Weapon Style) being shown as %increase end up odd/strange/vague to how it will affect things in turn based combat.