Button status 'basic' styling is invalid

Hi,

The styling of a 'basic' button seems to have randomly changed at some point in our project.
What could be the reason behind this? I haven't changed anything related to styling.

I don't think this is necessary a problem with the Nebular project, rather something related to my code, but it just doesn't seem to make sense, and all other status styles work just fine.

This is what it looks like:


Inspecting the button shows that 'status-basic' class isn't applied to the button, while every other status works correctly. I even tried adding the class manually to see if styling works then, but nope.

Thank you for reading.