Unfortunately we encounter major problems with some basic plugin features.

After answering to a topic we get a blank page.
In the database table wpforo_posts the posts show up immediately though.
But the new posts are only visible after deleting all caches.
Deleting a post doesn't work either.

There are no errors in the log files. No errors are indicated at forum tools - errors and problems.
Disabling the board cache has no effect.
How can we resolve this issue?