Post doesn't appear on Home

I've noticed that sometimes my postings do not appear on Home. I've noticed some postings of people I follow do not appear on Home. I've checked and can find them in Feed and on Discovery. I can't see any common denominator to this oddity.

I have an example.

At about 10am EST, I posted this.

https://www.primfeed.com/hughtoussaint.resident/posts/ad13af0a-cc4a-4dc7-9d89-3a4b7fa6a35e

It does NOT appear on Home, although it does appear in Feed and in Discovery.

At about 1pm EST, I posted this.

https://www.primfeed.com/hughtoussaint.resident/posts/37b9662b-3269-4ad7-b621-4b743c1c03b8

It does appear on Home.

The difference? The first post has a clipped version of the picture. Does the size of the photo explain its absence?

However, in saying that, I don't think size is a factor in the other missing photos I mentioned.