My founders cape disapeared

So a while back, I believe it was 2021, I notice my founders cape dissapeared.
At first I didn’t mind because at the time, I was moving to pc minecraft and to the minecraft java edition of the game. but now I heard that some capes you own will get transfered to java, and I don’t have my cape because of a bug.

I don’t think this will change the fact that I lost the cape and I believe that I won’t get it back, but at least I will say I tried to get it back