There are two possible explanations for this:
If the former, patience is key - this site covers thousands of entities, and all must have a manually created description written.
If the latter, try renaming the property - 'Domitian as Caesar' has no description, but 'Domitian' does.

Reverse: Naked youth on horse right; ΦIΛIΠΠOY / (trident?)
Die Orientation: -
Weight: 6.27 g

Reverse: Naked youth on horse right; ΦIΛIΠΠOY / (Λ.)
Die Orientation: -
Weight: 4.52 g

Reverse: naked youth on horse right; ΦIΛIΠΠOY, ?
Die Orientation: -
Weight: 3.77 g

Reverse: ΦΙΛΙΠΠΟΥ. Youth on horse rearing right. Control: Below, spearhead right
Die Orientation: -
Weight: 7.14 g

Reverse: Youth on horseback right, holding palm frond
Die Orientation: -
Weight: 13.97 g

Reverse: Youth, holding palm and reins, on horseback right; wreath below, Λ below raised foreleg
Die Orientation: 0 H
Weight: 13.84 g
Struck under Antipater, Polyperchon, or Kassander

Reverse: stylized horserider prancing left
Die Orientation: -
Weight: 2.6 g

Reverse: horseman riding right; ΦIΛIΠΠOY, M in wreath
Die Orientation: -
Weight: 2.52 g