Minecon cape increased for unknown reasons

I observed it for nearly 4 months. Minecon's cloak has increased unexplained reasons. The abnormal increase in 2011 2012 2013 2015 2016 is a safety issue. There are two picture comparisons Already

Already inquired Mojang's cape One of https://help.mojang.com/customer/en/portal/articles/872983-minecon-capes

The star tag in the lower right corner of the two images represents the account holding the cape.
The first photo was taken at 2019 3/31
The second picture with poor quality is 2019 7/12