There is the same problem on reddit, so they brought it here too so new users won’t be disoriented (/s)
This could be due to federation. Maybe they.are federating with servers that you aren’t.
But Reddit also had a lot of this and people always blamed shadowbans.
I doubt it is a federation issue. The number of comments will be worked out by the number of comments in the local DB. So the count won’t include comments not received.
As to why they’re not showing, as mentioned above, hiding bot comments, or perhaps deleted comments still appear in totals (not sure about lemmy, on kbin deleted comments have their text changed to indicate they were deleted).
Says the comment posted 107 minutes in the future, apparently
This is a known kbin/lemmy thing. Kbin sends dates with a timezone attached, lemmy expects UTC. I actually keep meaning to set the server to UTC to stop this happening.
Because data synchronisation between instances is quite poor.