I hope this topic hasn’t been already raised. Maybe this is corrected with the last Capella version .
Just to inform of a strange behaviour :
I use Capella 1.3.1.
I a LDFB diagram, I refined a SystemFunction1, for eg, with two leaf functions.
In a LAB diagram, when using “manage function allocation” on the logical system , those leaf fonctions appear in addition with the mother SystemFunction1 .
That seems graphically strange. Validation model raises it as non correct also happily. The Semantic browser describes correct parent function
By redoing an “allocated function” on this LAB, things go on correctly ( LAB shows either mother function, either leafs functions.