Anyone else having this issue with pet summoning?

[Vityaz]

As a Mage at 16 I could summon a 17 or lower pet. The 17 was very very rare, but 16 was somewhat common. Once they go dark blue, you can usually judge level by damage.

Each set of pet spells seem to range lower and lower, I'm guessing when I get my 20 pets they'll max out at 20.