Preview will not show anything until key press

[b-simjoo]

Hi, there!

Describe the bug
I had a .dbml file, I just installed the extension, clicked on show preview and there was only a single message "No schema found", I was going to uninstall the extension but I decided give it another chance! Then I deleted a line of comments and suddenly it showed the preview, I undo the change and preview refreshed!

To Reproduce
Steps to reproduce the behavior:

1. Close all editors and previews for .dbml files
2. Open a file containing diagram codes
3. Click on show preview
4. There should be "No schema found" message

Expected behavior
Show preview as soon as click on show preview

Screenshots

Screencast_20250904_120024.webm

Desktop (please complete the following information):

• OS: KDE Neon (gnu/linux)
• Vs-code Version: 1.103.2
• Extension version: 0.6.0

Extra Suggestions
Also it will be good if your extension come with syntax highlight.

[dlaplante75]

I also have that although not every time but often. Seems somewhat random.

I'm on Windows, extension v0.7.0