No horses in Shelter?

Is this a bug? If so, I'll report it properly. But if there's some other explanation, I want to know it.

Neither a Nomad nor a Horseman is permitted in my Shelter. And it's not that either occupies more than a standard space, as on a Raft. Not even 1 is permitted into an otherwise empty 12-slot Shelter: The OK immediately grays out.

Horses will go into my shelter. I have knights and they went in with no problem, they take two spaces.

Another player can put her nomads in shelter and she is in Katoria so that is not the issue.

I tested this , my nomads and horsemen went in successfully my chariots did also 

Another player can put their horseman in the shelter. So I am not sure if it is just an issue with yours or what.

The problem has now disappeared for me. Perhaps it occurred under a rejected build; if so, not worth a Bug Report.

If it recurs, I'll certainly bring it up.

My thanks to all!

I was wrong. It's not gone. But it occurs only when there are other units in the Shelter, w/ the Horse taking up a slot along w/ its rider. So you can have 6 Spies, 2 Monkeys, a Nomad, and a Horseman in a 12-slot Shelter, but you can't add a Porcupine to that group. If you take out either horse unit, you can replace it w/ 2 Dogs.

I'll take some pix and file a Bug Report when I've got a stable computer after the 2nd July.

I was wrong. It's not gone. But it occurs only when there are other units in the Shelter, w/ the Horse taking up a slot along w/ its rider. So you can have 6 Spies, 2 Monkeys, a Nomad, and a Horseman in a 12-slot Shelter, but you can't add a Porcupine to that group. If you take out either horse unit, you can replace it w/ 2 Dogs.

I'll take some pix and file a Bug Report when I've got a stable computer after the 2nd July.

This is not a bug since the horse does take up two slots you have filled the shelter without the porcupine. I guess I do not understand. as I count 12 units being place in the shelter before you try to add the porcupine.