**Describe the bug** UICatalog Character Map category jump list is hidden until the character table is scrolled. **To Reproduce** 1. Start UICatalog 2. Open Character Map scenario - Right-side category list missing 4. Scroll the character list - Right-side list appears **Expected behavior** The character map category list is displayed from the beginning similar to the legacy console drivers. **Screenshots**  **Desktop** - OS: Windows 10 22H2 (build 19045.5487) - CLI: Windows Terminal v1.21.10351.0 /w cmd - Terminal.GUI branch: v2_develop