So i Skimmed through previous bug reports and didn't seem to come across these, So do excuse me if these have been mentioned before. Anyways these two bugs have been crippling for me and others who build on creative, And base our builds off a specific texture pack.
When you set your texture pack to anything other than original in the initial customization menu for your world, Other players will not spawn in the map with the texture pack you selected. It will always be "Original" or the texture pack they had previously selected before joining the world. It seems to be a problem for everyone i have talked to who uses a creative map. This is literally causing us to inform every individual person who joins our worlds to change to the proper texture pack.
The second bug i'd like to make mention of would be something that largely varies in creative maps, Depending on the dimensions they choose most likely.
My map dimesnions are
ground level 226
from depth 240-223 it wall cause any visitor too immediately have the loading screen pop-up regardless if that area is loaded or not. The user can escape it eventually but it will happen every-time they enter that depth zone. This bug does not affect the host. The bug is very similar to the one that causes maps not to show up for visitors at certain depth.
Anyways, Really hope to see these fixed in the next patch
Worlds always open if you need to come check it out in person.