What I’ve encountered is having a team of griffons, including the griffon dreamfinder which shares buffs across all griffons when they receive them. I am also a tribalist with the perk that gives my creatures a buff for each of the same race at the start of combat (Battalion). However, when the battle starts, my griffons do not share their buffs, and just have their own buffs. I assumed they would all share, but it seems like they do not.
As a note, I’m not sure if this is a bug or simply how the timeline works, but it seems like a synergy that should work.