Feature Settings Not Loading

I’ve had a page that’s been working for several years. I recently went to make some updates and I realized that there are sections that I can no longer edit with the backend Editor. Notable would be “Icon Feature” “Fullwidth Section” & “Text Block” (there maybe more). Whenever I attempt to edit anything, the settings window opens but never fully loads (see image upload).

I am aware that the “Fullwidth Section” is deprecated but wanted to note that if I switch to classic mode, I can modify that text that was in the fullwidth section but I can’t remove or change the background image and there is a background image. It shows up fine on the live site… just that there is no way to access the settings to make changes.

WP ver: 6.3
Highend ver: 3.8.5
PHP: 8.2.8