Hi. I'm at a loss, and I've actually been using Vegas with this issue for a couple of months now because I need to work, but I've been unable to find a solution.
It's like playing peekaboo with buttons. Sometimes buttons appear when my cursor hits them, sometimes they appear. Sometimes they flash, or enlarge. I also noticed a significant drop in the efficiency of my preview, especially projects with transitions/keyframes, even on Draft (Quarter). This was not previously an issue.
I ended up dedicating an extra few thousand MB in dynamic ram, turning off thumbnails and basically turning absolutely everything into it's most basic, least intensive form. Glitching GUI only got worse, preview stuttering stayed about the same but rendering seemed to become faster.
I gave up, restored everything to default. Still an issue.
I've googled, and googled. I wondered if perhaps the update would fix. Nah.
Here's a video of said issue:
I'm using Vegas 19 (Post) with the full Boris Suite (Mocha, Sapphire, ect.) Specs are below.
Processor
AMD Ryzen 7 5800H 16 core, 4.4 GHz.
Memory
14GB RAM
GPU 1
NVIDIA GeForce RTX 3070 Total 16 GB, Dedicated 8.0 GB
GPU 2
AMD Radeon(TM) Graphics. Total 9.0 GB, Dedicated 2.0 GB.
OS
Windows 11
Drives
1: Free Memory 80 GB
2: Free Memory 76 GB
3: Free Memory 11 GB