WPHB Minify Groups activity

I have the Activity Log plugin installed, and noticed something being logged multiple times per minute called “WPHB Minify Groups”.

Do you know what this is, and why it is doing something on the site every 10-20 seconds?

Entries show:

1 min ago

12/05/2019

20:56:59 N/A our.ip.of.site Post WPHB Minify Groups Updated <the same UUID-style looking entry>-styles

1 min ago

12/05/2019

20:56:49 N/A our.ip.of.site Post WPHB Minify Groups Updated <the same UUID-style looking entry>-styles

1 min ago

12/05/2019

20:56:29 N/A our.ip.of.site Post WPHB Minify Groups Updated <the same UUID-style looking entry>-styles

1 min ago

12/05/2019

20:56:24 N/A our.ip.of.site Post WPHB Minify Groups Updated <the same UUID-style looking entry>-styles

1 min ago

12/05/2019

20:56:10 N/A our.ip.of.site Post WPHB Minify Groups Updated <the same UUID-style looking entry>-styles

2 mins ago

12/05/2019

20:55:51 N/A