It does not seem to happen in the initial installation. It is difficult to think that it is a bug of the new version. This is a solution as an existing bug. If you have added extra plugins, you may find out the cause by searching (grep) with "filter_answer" under qa-plugin folder.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.
Jan 12, 2019: Q2A 1.8.3 released!