Making Changes To Features List Does Nothing

I am trying to make changes to the Features list. Nothing saves. If I click the cross next to a feature then save, when I come back in the feature is still there. Same if I change the name of something, save it, come back in - no change saved.

Please see this video - I have recorded the issue

https://vimeo.com/230631225?activityReferer=1

I am trying to make changes to the Features list. Nothing saves. If I click the cross next to a feature then save, when I come back in the feature is still there. Same if I change the name of something, save it, come back in - no change saved.

Hello!

Have you checked the error logs?

If you have any 3rd party modules which work with product features, try temporary disable them