Can't see any comments older than 1 month on fedia.io?

Anyone else having problems reading older comments on the fedia.io Firefox Customs pages (https://fedia.io/m/FirefoxCSS)?

Tried logged-out and logged-in... no comments on posts older than 1 month... although the index pages show many posts have comments?

However, access Firefox Customs pages via lemmy.world (https://lemmy.world/c/FirefoxCSS@fedia.io?dataType=Post&page=1&sort=New)... and all the comments are available right back to first post by MrOtherGuy 5 months ago 'How to set up userChrome.css' (https://lemmy.world/post/1055304).

Am I missing some setting on the direct fedia.io page or link?