The layout looks unstyled
Almost always a caching issue after an update. Clear any caching plugin and your CDN, then hard-reload (Ctrl/Cmd + Shift + R).
Images look stretched or blurry
The theme’s crop sizes were not generated for images uploaded under a previous theme. Run a thumbnail regeneration — see Recommended Image Sizes.
PHP warnings on a fresh install
Fixed in 1.3. Earlier versions read theme options that did not exist yet and emitted “undefined array key” notices on PHP 8. If you still see them, confirm you are running 1.3 under Appearance → Themes.
Menu shows every page
No menu is assigned yet. The theme falls back to listing pages automatically. Create one under Appearance → Menus and assign it to a location.
Customizer settings vanished
Settings are stored per theme. Switching themes — including to a child theme — starts a fresh set. Switching back restores the originals.
The site is slow to load fonts
As of 1.3 fonts are served from your own server rather than a third-party CDN, which removes an external request and the privacy question that came with it. If you previously added a plugin to disable remote fonts, it is no longer needed.
Still stuck
Post in the Child Education support forum on WordPress.org.