thank you for your free versions of your themes, I have been using theme for some of my projects!
I face a problem with the sharing buttons provided by jetpack. I have a configuration for these buttons as seen at the folloing screenshot:
Jetpack has options controlling which site sections its styles and scripts are loaded to – https://jetpack.com/support/sharing/
When mixing content types like having portfolio post elements displayed on a (static) page, its filters (adding the buttons) may still apply while the styling remains disabled because the separate check detects a different section.