My dissapearing capes

all of my capes, thorough the course of the past 5 years have vanished! I once had the following capes: Founder's cape, Cherry blossom cape, Progress pride cape. I understand that this probably isn't only happening to me, and I would love to get mine back soon.

P.S. yes, I do remember downloading the founder's cape skin pack before it vanished. 

New update: all capes accept the founder's cape have been re-added to my account.