Hey ThePufosenie, thanks for your response and apologies about the delayed response from our team.
Is there any chance you could provide us with your save file?
It is normally by default located in
%userprofile%\Documents\Anno 1800\accounts. Once located, you can just simply upload it to any file sharing website and send the link over to us so that we could take a look at it.
Alternatively, you can submit a support ticket in our
website by logging in and selecting 'Contact Customer Support. You'll need to compress your file before uploading.
Let us know and we will take it from there!