BUG Report: Sisay is considered as a 5 colors card!

[wwwmagnottait]

Hi all! Sisay, Weatherlight Captain is considered as a 5 colors card, even when you start the game and Sisay is in the Command Zone. Bloom Tender can consequently procude all 5 mana colors.

The weird thing is that Sisay, on XMage deck editor, is correctly considered as a white only permanent.

The same, identical issue happens when, for example, I copy with Sakashima another single color creature but with an activated ability with all colors (as Go-Shintai of life's origin). As you can see in the image below, it is considered of all colors, and Bloom Tender gives all 5 mana.

This issue is present on Xmage since 2019 and never solved...can anyone help? Many thanks

[wwwmagnottait]

as u can see Bloom Tender gives ALL 5 mana colors

In Deck Editor, instead, Sisay is correctly considered as a white only permanent