That is what I thought at first.
I removed all the mapflags in Rent_Prontera.txt, then I restart the server, then tana! same result, @save, and kafra save code does not work.
savepoint "rentb1",90,103;
There is no error in the map server, so there shouldn't be any problem. But when I check the save_map of the character in char table, its just blank.
I have also tried to change that savepoint to prontera and my other custom map and it works. I don't know what curse I can't make myself save to this map.
Have you tried this and see if it will work for you? that will be so much appreciated!