The 15th anniversary cape does not appear in my Java version

I just bought Minecraft to get The 15th anniversary cape. I collected the cape but it only appeared in the Bedrock version for me to use. In the Java version, I can't find that cape to use.

Is this an error? Because I saw other people on social networks who were able to use it in Java version.

 

Update: It's been about 12 hours since I bought Minecraft and collected the cape, it still doesn't appear on my Java version to use.

I also followed this website's instructions:
 https://help.minecraft.net/hc/en-us/articles/26560321236621
 then visit this page:
 https://www.minecraft.net/en-us/msaprofile/mygames/editskin

 I scrolled down and didn't see a "15th Anniversary Cape" that existed.  Similar to Minecraft Launcher.  (b.2.24.27-1.7.2)