Unable to allocate MODs to Krrstantan

Well, you're not going to be able to put 6-dot on, as your Krssanton is not g12. Are you having other interface putting even in advanced?

I'm having a similar issue (though I can assign Mods via "Advanced"). However, the basic assign doesn't work on the circle and plus (I suspect) due to Krrsantan only having two 2-set mods listed for him. All other characters have either a 2-set and 4-set recommended (e.g. RJT has Crit Chance ( 2) and Crit Damage (4)), or three 2-sets, all of them same (e.g. KRU has three Defense ( 2)). When I look at Krrsantan's info circle on the basic mod page, I can see he only has Defense ( 2) and Health ( 2) listed for his mod sets. This is probably what's leading to this behavior. I don't know of any other character that has two different 2-set mods recommended, so this nuance probably flew under EA's radar. (EDIT: Just noticed Aayla Secura has two Crit Chance ( 2) and a Potency ( 2) listed)

FYI, I just noticed this issue when I was searching for mods for him, and it was suggesting some Potency and Critical Damage mods from the store, which was odd given only Health and Defense are listed as recommended.

That’s the exact issue I am having, you have just explained it better. I’m glad I’m not the only one that it’s affecting.

Any update on this problem please? I confirm likely due to character having incomplete set recommendations (health x2 + defence x2 = 4, needs 6 total). Someone just needs to assign another pair set to his recommendations please.