Hopefully my experience will help someone.
I wanted to export my self hosted wordpress to a new self hosted service. I couldn’t even Export the posts using the tools within WP. Nothing got exported.
So, I found the Advanced Export Plugin and it succeeded in creating a XML with all my data. Now the problem was with importing in the new WP.
I uploaded the file and got to the screen for mapping authors. Then nothing happened. Just a blank screen.
I searched for a solution and found a simple one: Edit wp-settings.php, line 13, and change memory from 32 to 64. It worked like a charm.
I must mention that my XML was only 2.6 mb, so this shouldn’t be an issue, but that was the solution.
These forums have helped me a lot, so hopefully I can help someone too with this tip.
Greetings!