@TreTuna Can you check what the 'F1 > Insert Snippet' command shows? Do you find your snippet in that list? Can you share your snippet file?

@jrieken Thanks for responding.

There are no snippets found at all on my Insider's Edition VSC, however, my installation of Release VSC has them all. My snippets files are empty as I have no custom made snippets myself, all of mine come from extensions.

I have side-by-side installations of release VSC and Insider's Edition. All settings/extensions/etc are matched using the Settings Sync extension and the Insider's edition just doesn't see the snippets at all.

Insider's Edition Version 1.20.0-insider - Insert Snippet:

Release VSC Installation Version 1.19.1 - Insert Snippet:

Oh, wait this is insiders vs stable, right? Both have separate locations for snippets, ~/Library/Application Support/Code - Insiders/User/snippets and ~/Library/Application Support/Code/User/snippets. You can sym-link them or copy them

Yes, this is an issue with Code Insiders 1.20.0 (the version before that worked fine), not stable VSC 1.19.1. It's also a problem with snippets from extensions and not user created ones in those files.

I have no personally created user snippets. However, to test if this was a full snippets issue or just extension snippets, I created a custom snippet real quick in Insider edition and that worked fine, however, all my snippets from extensions still are not loading in and do not work in insiders edition as of the 1.20.0 release.

all my snippets from extensions still are not loading in and do not work in insiders edition

Installed extensions aren't shared between insiders and stable. So those you also need to 'double' install. You can check with the extensions viewlet: Select an extension, Select Contributions and check if there is a checkmark in the snippets column in the Languages section.

All my extensions are double installed, in fact, when this issue arose I did not even have the stable version of VSC installed on either of my computers. Insiders has been stable enough for me for the last 6 months that I had deleted the Stable build. I only reinstalled it on my work machine when this happened so that I could test if they worked there and seeing that it did, I'm now working in that version until this issue is resolved with Insiders. The computer I'm typing this on (my personal MBP) still only has Insider's 1.20.0 installed, all 6 of my snippets extensions have all the checkmarks, and yet I have no snippets available for use.

all 6 of my snippets extensions have all the checkmarks, and yet I have no snippets available for use.

Hm, that's weird. What extensions are those? Do you get snippets from the builtin/default extensions. Like TypeScript -> Class Definition?

Here are the snippet extensions I have installed. I've used pretty much all of these for 9+ months without any issues until now.

Here is an animated gif of scrolling through my list of available items when I press control+space. The only real snippet I have is the first sniptest there that I created specifically to see if the user added custom snippets work.

Yeah, thanks I can now reproduce. This is a regression from a change I have made last week and affect 'some' snippets, depending on their file name. Working on a fix now

There is actually two issues: one is a falsy assumption that the file name denotes the target files (when it's a json file) and then there seem to be extensions that use the same file to register snippets for different languages

Just wanting to say, today's installed update fixed this issue. Thank you @jrieken for your help!