Hi,
I didn't say to change it to another skin and then back to the initial. I said to copy the current skin to a new directory and set the site to use the new copy. For instance, if the skin name is mycoolskin, copy it to a new directory named mycoolskin_v2 and then set the site (in site settings) to use mycoolskin_v2.
If the site is running 2.3.7.5 or newer, the "Reset Skin Version Guid" button is available and that can be used to avoid needing to copy the skin.
HTH,
Joe D.