It's a vanilla bug, happens very very rarely though. Probably 1 out of 1000 games or even less. Happened 2 times to me but I think was in a26. It's something that has to do with selecting a very large group of units, you can mitigate this by selecting smaller group for a while. @Arup if you have the replay where it happens would be op.

Wanted to share some feedback after playing a couple of games with Kushites and Imperial Romans. I've mentioned this before, but the hero portraits should be smaller, IMHO. With that said, I like this mod a lot. All changes seem logical, and the addition of two new resources seemed overwhelming at first, but it's really not. Glad that I don't have to reset the rally points of my Barracks every couple of minutes. The new economy model takes a while to adjust. Market is a relevant economic structure now, which reminds me of AoE 1 a bit. Using slave labor for optimal boom is almost essential, but fields might need a build speed boost. Or else you have to bring more Citizens than necessary to prepare them for slaves.  The phase up mechanics are much more interesting than in the base game. The AI needs some work in order to make it more challenging. Half of the time I didn't know what I was doing with the Kushites at first, but still managed to win that game. For the sake of visual consistency, I'd try to make each portrait adhere to a standardized style. What you did for the Persians and Seleucids looks like a good pattern to follow. Overall, great job. You managed to make the game better in nearly every aspect.

For Delenda Est only or base game?

I'm able to use the bug tracker right now.

another thing atleast for me is that during crucial moment of the game in a TG(so, high pop and all) when I'm trying to send a huge army to fight or something it makes me lose connection,even though until then my connection was perfectly fine. if I rejoin it will be fine until I try to do the thing I lost connection for.this is very annoying indeed is there a possible explanation for this?