Automated triage: Not a bug
Thank you for reporting this issue. This report is from an early 2.3 version and we couldn't reproduce it then. The same artefacts appeared on two unrelated kinds of icon on one machine only, and nothing recent confirms it still happens. If you still see this on the current version, please open a new report with up-to-date reproduction steps.
This is an automated assessment. A member of staff may review and update it.