I've provided a screenshot of two different Distribution Lists below. When I try to add #DistList1 to my Team, I have the ability to expand the group and remove specific people I don't want in my team. However, when I try this with #DistList2 I don't have the option. The main difference between the two that I can see is that #DistList2 has 100 members and #DistList1 has 13.
Do you know if there is a limit to the size of the Distribution List where Microsoft Teams no longer offers the drop down to expand the group?