this bug is already known.
this bug is already known, exisits since 1.13
try to upload your skin file (.png or what ever) into skindex. Then try to upload it to Minecraft from there.
you have to put your world files into a named folder. Then it should work
this is normal, you have to change to *FABULOUS! * in your graphic settings.
do you have WorldEdit on your server? If yes, compasses let you teleport trough walls.
where does it not come out? in GUI Inventories or in the ESC Menue?
really? before 1.13? never noticed that