Flexible armor bug?

My character is using chain shirt, which has the flexible trait. Chain shirt has an armor check penalty of -1, but the flexible trait states that the check penalty wouldn’t apply to Acrobatics or Athletics checks. However, when I look at the skill checks in my character sheet, I am still seeing the -1 penalty on Acrobatics and Athletics. Shouldn’t that penalty not be there for those checks?

Here is my character sheet for reference: Demiplane

Thanks for the report, we’ll take a look!