As you can see Minecon capes don't work with custom skins that you import into the game.
Additional information by @unknown:
The cape referred to in this report is the Founder's Cape on the Capes tab of the Profile. If you try to add it to a skin that you imported, no change is visible. Either the cape is applied but is invisible, or the attempt to apply it is rejected without an error message. (There's no way to know which is true.)
There is a skin pack in the Marketplace named Minecon 2016 Skin Pack. If you download it, it appears on the Classic Skins tab, in the Owned list. The skins in that pack all have a Minecon 2016 cape, so there is a potential for confusion about whether this bug is meant to apply to that pack. It isn't. The capes in that pack are implemented differently and do not appear on the Capes tab of the Profile.
Linked issues
is duplicated by
MCPE-53217
Capes don't work with the character creator
MCPE-53628
Minecraft cape wont show with custom skin
MCPE-53717
Capes don't equip to custom skins
MCPE-53816
Default Elytra texture (not capes) have no texture at all
MCPE-53857
Custom Skins Not Compatible With Capes
MCPE-54063
the Cape is not displayed
MCPE-54422
Traditional Custom Skins with Capes issue
MCPE-54424
Imported skins are not compatible with founders cape
MCPE-54480
Cape not working for custom skins
MCPE-54492
Capes on Custom Skins
MCPE-54499
Issue with capes
MCPE-54523
Founder's Cape isn't applied to custom skins
MCPE-54596
Cannot put Cape on custom skin
MCPE-54843
Cant add cape to OWN skin
MCPE-54872
I cant see the founder's Cape
MCPE-54907
Founders Cape doesn't appear on custom skins
MCPE-54981
Founders Cape On Imported Skins are not working!
MCPE-55019
Import skin doesn't show cape.
MCPE-55164
Capes cant be added on uploaded skin on mobile
MCPE-55224
Can't put cape on imported skin
MCPE-55538
Capes not working for custom skins
MCPE-55657
I wasn't able to use my Founder's Cape on my custom skin!
MCPE-55682
Cape not working on Custom Skin Minecraft Bedrock 1.13
MCPE-55687
Cape wont appear on character skin
MCPE-55746
The cloak does not work on a custom skin.
MCPE-55791
Unable to put capes on imported skins
MCPE-55856
Cape not rendering on imported skins
MCPE-56981
Capes dont appear on uploaded skins.
Attachments
Comments
Spotfish
migrated
Bug is present in 1.13 released non beta version
migrated
Still happening in 1.13 release for Windows 10.
PikaBlu
This is not fixed, title is incorrect. Still effects 1.13.0. The Founders Cape was promised to be released in 1.13.0. Why is it not added yet? iPad Pro on iPadOS13.2.
migrated
Exactly, the cape dont work and the elytras dissapear!
migrated
The elytra becomes like two capes and it is also completely black
Jonathan5733
Please note that this issue is fixed in the 1.14 beta versions and not in 1.13.
migrated
Fix in 1.13.1
tryashtar
Resolved at reporter's request
migrated
Gak ada founder cape
migrated
Don not founder's cape
This happens on the 1.14.0.1 beta on Windows 10 as well...