Created attachment 166287 [details]
First and second extensions are drawn over each other.
Patch at https://gerrit.libreoffice.org/c/core/+/104051
Heiko Tietze committed a patch related to this issue.
It has been pushed to "master":
Resolves tdf#137408 - Bad positioning of first items in extension dialog
It will be available in 7.1.0.
The patch should be included in the daily builds available at
https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
Affected users are encouraged to test the fix and report feedback.