Due to a payment provider that shall remain nameless not yet updating their extension to be 2.4 compatible, we've had to downgrade a new store from 2.4 to 2.3.5
The process wasn't particularly painless, but we now have the site functioning in pretty much every capacity EXCEPT that:
accessing the store (catalog) page results in an empty page (NOT a literally blank page, HTML with head and body tags loads but no content so a white page
products can be searched for using search but attempting to click through to the product page results in a 404
(We also had to downgrade PHP to 7.3 too)
What's weird is that even with Debug mode on:
- there is no error in console when accessing the store page
- there is nothing in debug.log
- there are no PHP errors in the PHP error log
We've switched from our custom theme to the regular blank one, and Luma, and the same thing happens
Caches have been cleared etc. basically the full 'deep refresh' via CLI:
php bin/magento setup:upgrade php bin/magento setup:di:compile php bin/magento setup:static-content:deploy -f php bin/magento indexer:reindex php bin/magento cache:clean php bin/magento cache:flush
Has anyone experienced anything similar in the past, and can tell us where to go next?
Or at the very least, can anyone suggest how we can at least get some error messages telling us where to look?