I'm using keepassx auto type functionality for different logins. When the username contains an "@" symbol the auto-type function turns the "@" into "1/8". In the db it correctly shows the "@" sign. How can I fix this issue?
According to this bug report you're facing an issue with wrong/multiple keyboard layouts. The solution suggested there is:
In case you need only one keyboard layout, using setxkbmap <LanguageCode> should work.
In case you are actually working with multiple keyboard layouts, there seems to be no solution except configuring only a single layout.