It literally won't show up. Both of the track and the preview. It certainly worked before as I edited the preview one.
Plus, I found so many functions not working properly. For instance, when I edit the key frame on the track motion, the cursor won't work even though I moved it on timeline. It should be supposed to move.
I don't know if Vegas Pro 18 is abandoned.
My system:
Device name: DESKTOP-FH22080
Processor: AMD Ryzen 7 5800H with Radeon Graphics 3.20 GHz
Installed RAM: 40.0 GB (35.9 GB usable)
System type: Windows 10 Pro 22H2 64-bit operating system, x64-based processor
Vegas Pro 18 build 527