Given that the release notes for March of the Machine state under the section "Teaming Up for Another Feature" that we can now select favorite card styles to default to, and I'm unable to do so, this is definitely a repeatable bug. I've been wanting this feature since I got the special art of Adeline, Radiant Cathar and then the borderless style became her default. I also worked hard for the Dominus card art and deliberately didn't get the dominus borderless styles for the last couple because I didn't want to override the ichor styles I worked hard to earn.
Given that the release notes for March of the Machine state under the section "Teaming Up for Another Feature" that we can now select favorite card styles to default to, and I'm unable to do so, this is definitely a repeatable bug. I've been wanting this feature since I got the special art of Adeline, Radiant Cathar and then the borderless style became her default. I also worked hard for the Dominus card art and deliberately didn't get the dominus borderless styles for the last couple because I didn't want to override the ichor styles I worked hard to earn.