Cant end turn. Please help

[S3D3]

Guys I'am playing single player campaign turn 100+ (as England). Everything is done, I click End Turn.. I wait, ahh new turn..
Then click End Turn again...nothing happens, I click again - guess what; nothing happens..
I try to click other things such as Missions and diplomacy but nothing happends. But those thing have hotkeys so I can open them.
I can move my army around and build buildings, recruit troops by double click on a settlement. I can do anything as long as it has a hotkey. Therefor I can't end my turn! Which sucks hard.
So yeah, I basicly can't end my turn.

Now, this does not happen when I start a new campaign. In a new campaign everything is as good as ever.

Can someone pleaseee tell me how to fix this? I really want to play. ( I can offer more information if needed )

I believe it may be out of memory, since i got that message several times. This is my first total war game so i thought nothing of it.

Please help

(Forgive me for the spellings, I tired)

[irishron]

It sounds like the game is "taking forever" on its part of the end turn. I have had hordes form and take almost an hour. Minimum spec pc may take three times as long.

[John Doe]

you're sure you don't have a choice to make with one of the information scroll (weddings, breaking alliance, adoption, guild, etc...)?

[S3D3]

If i click on the autosave file and click end turn, it works fine

[irishron]

After you clicked end turn did the cursor disappear and how long before you saw it again?