3D model plugin; Dynamic sampling; Bug fixes.
The workflows Construct uses for .ts files are described in TypeScript in Construct in the manual - for example it's by design that if you use an external editor, Construct will only import .js files, as the assumption is then you are using the external editor to compile TypeScript. If there's a crash or you otherwise don't think it's working correctly, please file an issue. I'd also point out we recently did quite a significant update in the past release cycle which brought the Monaco editor and TypeScript version up-to-date.
Aside from crashes and weird behavior.. well yeah, I guess current TS mode doesn't make sense if you already use external editor to write TS (as do I), so thats why I was confused.
But still, it still does feel kinda unfinished and unstable, so I guess I will need to check the latest beta to see if something is fixed and file a bug reports when I have time. Thanks for the answer!