It is still playable... I'd imagine the pathfinding is killing it, in part I'd say due to a large galaxy with an incredible number of starships and the AI is trying to move them all, or it is getting lost moving yours.

What worked for me was to disable "Force AI to use Max CPU" and enable "Skip Moves Left Over From Autopilot."

From there, hit the find button, it is possible there could be a few craft with outstanding turns then need to either be skipped, or moved. It was just a temporary measure for me until I could whittle down the enemy starfleet and giving the pathfinding a bit of a break.

Thanks, I'll try the  "Force AI to use Max CPU" and enable "Skip Moves Left Over From Autopilot." switches and the Find button to see if it works. Just saving and reloading doesn't work because the Turn button just goes away on the first click.

I'm surprised Stardock hasn't fixed this. This is a major bug IMO and should be fixed.

Thanks again for the replies guys.

Hit the find button, then move any ships that have left over movement points. Also, after disabling those options, restart the game and reload, possibly from an earlier autosave if possible.

What sort of map is it, ie: gigantic, immense etc. Do you expect there to be a lot of starships present?

I hit find and move the ship and that always fixed the problem for me. This is the way to go if you ask me.

Whenever it happened to me (not very often) it was just a ship that was somehow "stuck".

So all you have to do is find the ship (most of the time it was on screen) and move it and the turn button should be back and working.

Also try simply hitting the "Find"-button as suggested to find the ship.