"Soapy" skimmate

[Pennywise the Clown]

Recently the foam in my skimmer cup never seems to break down, almost as if there is soap getting skimmed out. It never used to look like this.
Is this normal?

 

[Crabs McJones]

Looks normal to me. My cup is similar when I go to change it out every week.

 

[Duffer]

Yep. Looks like normal to me..