When the group dynamics in a situation are not functioning well, the dysfunctional energy becomes hard for sensitive souls to bear.
Issues might not be expressed openly, but odd occurrences start happening. It takes maturity to observe such situations objectively and to make a group feel safe for all involved.
In the wider scheme of things such issues shouldn’t count for much, but logistically things can go awry if nothing is done to make things settle.
Much is dependent on the chemistry of partnerships.
Ultimately, a light touch in collaboration is probably the best way forward.