As it used to work well with InDesign 17.4 it seems to be a new bug which was introduced with an update of InDesign. I have not tested all versions in between, but it does not work with 19.0.1. Not with Mac nor with Windows. For details, please see the attached screenshot.
Please don't hesitate to get in contact with me if you need any further information or help. If you need fonts, you can download trial fonts here:
https://fontwerk.com/de/fonts/neue-din#buying-options

I recommend everyone here to stick with 18.1 (2023) until they fix it. That gives support for variable as well as being the last version to support post script fonts (I have a lot of those...).

I installed the Prerelease version (19.1, windows 10) but Monotype's Futura Now Var still doesn't work. Once you try to touch the sliders, the font style reverts to Text Condensed. The slider values stick only at the end positions of these sliders (min and max).
I don't see this problem with the few other variable fonts that I have installed.

How much time do you need to figure out the variable fonts support is pathetic? A year? Two years? Adobe, wake up. We use InDesign for work, for business. We need tools that work. I tried several fonts by David Jonathan Ross, they work well in Axis Praxis. And guess what: the variable font sliders do not modify the appearance of the font at all in InDesign.

19.0.1 is still having the issue.
Please give this more priority!

This is happening to me as well. Updated to version 19.0.1 over the weekend and now my Google font for a project I am using (Outfit) is doing this. Tried installing the previous version (19.0) with no success in fixing the issue. Deleted preferences, still not working properly. Will try installing the last version of the 2023 InDesign to see if this remedies it for now.

Happened to me today, uninstalling current version and using 2023 instead fixed it for me, untill the current is more stable at least :/

Same issue overhere. Until this is fixed, we are working with the previous version. The font works fine there.

Still having issues with variable fonts. This is a bug that is breaking the software, can't use it for layouts at all. Indesign v 19.0.1. Please fix this asap! It's clearly been months since this has been reported!

Futura Now Variable is totally messed up. Other variable fonts with only a weight parameter become thin at the end of the scale where they should be extra bold.

Here is another example, using the variable google font Outfit

If it helps your team, inDesign 2023 loads all the variable fonts correctly.

Variable fonts not working!!! Please fix

I’m having the same issues with other variable fonts. This is very bad

Note - the sliders are still not working, even on major fonts like Helvetica Now Variable. Thank you for looking into this

I'm working on brand guidelines, and Lexend Deca is the brand font. It is a MASSIVE issue that it isn't working for me now, I'm not even sure what to do at this point.

I'm working on brand guidelines, and Lexend Deca is the brand font. It is a MASSIVE issue that it isn't working for me now, I'm not even sure what to do at this point.

The fix was promised for the last update, that did address some harfbuzz issues. Unfortunately the Variable Font issue is still remaining.

so many font problems related to weight, style, adding a stroke NOT WORKING, glitching out. including export to pdf font glitches from both indesign & illustrator.

All our variable fonts available on Adobe Fonts are affected by this bug. Thanks for actively working on resolving it.