good that you have the game working. is it only a homeless problem? i did not open the save file.
are the bannies getting stuck where they have no bridges? did you take nomads and they have same problem- can not get to town? the bannies will walk all around and not swim back across rivers or streams. in the pic, i see no bridges so think this might be the issue. this happpens a lot.when clearing land along streams ,be careful that you don't send the bannies to clear on the other side.
if a parent goes homeless the child can to.say the child lives with just 1 parent,child won't live by itself so both go homeless. other thing could be is the houses you built are too small. some houses allow only 3 bannies. google translate uses word "tent". did the bannies get lost from a larger house and you built a tent? did parent die? is the door to the house blocked so bannie can not use it? built with door facing stream can do that.
this can happen along narrow docks when bannies put something down too.
can you post pics of the housing and where the homeless bannies are?