The Squad_EntityAt function was removed with no notice and no mention in the patch notes seemingly in favour of Squad_GetFirstEntity which has broken two of my mods and will break at least 3 others that I’m familiar with the codebases of. We have no guarantee that squads will only have one entity so this function is not even equivalent.
I’d like to refer you to another one of my threads for additional issues related to modding Feedback on the state of modding from some of the modding community