Static analysis failing: Subscription services must create product groups

It seems like there has been a recent change which is causing my channel to fail static analysis.

I only have one product (a monthly subscription), however I now see this error that is requiring me to make product groups for mutually exclusive products.

Static analysis error:

Subscription services must create product groups in the Developer Dashboard for any set of subscription products that the consumer should not be able to be subscribed to simultaneously. Error ChannelStore RP 3.1;RP 3.2;

Because I only have one product, I cannot make a product group.

This seems to be an addition to the static analysis tooling because if I package older versions of my channel (which had previously passed), I am now seeing this error.
I haven't been adding new products.

Would appreciate any ideas on this.