When changing the variable type of a variable in a struct, it can cause some pins related to arrays of this struct to become disconnected. The project provided was from the Marketplace, entitled "Survival Game Template" and has been the only place where we can reproduce this issue.
Project: [Link Removed]
There is a similar issue to this (
UE-27652) that a user fixed with a PR but this problem has different reproduction steps and seems to be quite a bit different.
This occurred as far back as 4.10.4
Head over to the existingAnswerHub thread and let us know what's up.