Hi! I downloaded a custom font and it has a variety of weights. I uploaded all of them but for all the weights under 400, they just automatically display as 400. I.e. I am using Tobias 300 for my header and Haffer 300 for my body but they both automatically default to 400.
Here’s a read only file if needed.
https://preview.webflow.com/preview/joinable-91bdf9-242188e3472fcc834962a9c?utm_medium=preview_link&utm_source=designer&utm_content=joinable-91bdf9-242188e3472fcc834962a9c&preview=02e6c728b2ba3210b5d1169a728a9b1f&workflow=preview
I’m seeing only single-weight fonts in your list, in the screenshot below.
Ideally if you can find them in a variable font format, that will make your life easier.
Otherwise you want to download your custom fonts with all of the weights you’re looking for.
If that’s not possible 
you might be able to simplify the UX by renaming the font files Haffer and Tobias and then try to upload multiple versions under those names. I -think- Webflow will then group them all under the same family name, while listing the weights separately
