Hey Aerosaf!
please accept my apologies for this bug, it’s a known issue and I am preparing a theme update to completely eliminate the possibility of an error in such situations. Yet there’s an easy way to fix it right away: please check that your portfolio tag names and slugs are identical (in “Portfolio -> Tags” admin menu) and be sure to input the tag names into the “Filter” fields of the respective icon menu items in the “Icon Menu” tab of the Theme Options panel.
Please let me know if the above information helps to fix the problem!
Sincerely,
Andrew / Satori Studio