Hello,

My hunting party has become invisible. I'm still able to select it if I click on it but I just can't see it.

i got this too multiple time during my play

I also got this a couple times. It seemed to go away when I joined them up and split them up again with other units, however. 

Just got this bug as well, I declared war then my two armies close to the enemy's border became invisible. Like, mention above I can still select them if I know where they are. Their icon appears when attacking an enemy and the battleground is shown.

Artemi7 fix worked for me.

Same problem here.

Yeah thats what I saw too. I think it has to do with trying to move one army while another is in the process of starting a battle. I got the battle preview bug a few times and the invisible unit bug once and all three of those times I or one of my vassals was starting a battle with or next to another set of troop while I moved the unit that got glitched out.

I just had the same issue.

Preview Battle was one the ways to replicate this invisible army bug. If you're mousing over a target with your army, occasionally it can just get stuck in the preview deployment mode, even though I didn't confirm or ask for any deployment.

The other time this has occurred for me was just finishing a manual battle. I was fighting 2 mammoths against my 2 troops and won with using 2/3 battle moves. Once it exited the battle view, my army turned invisible.

I have also observed Independent state invisible armies after retreating from combat with with the army of an independent state.

Yes, I bought the game yesterday and have seen this multiple times.