Updating PBI apis breaks LESS background images

Hello,

For our project, we were getting hopefully behind on keeping the visuals API updated. I have recently updated this, but for some reason this breaks all of our HTML element background images set in LESS.

These worked perfectly fine before. It seems that one of the updates to the visual introduced some form of hashing to background images, leading the path to not work appropriately?

HTML inspector output before the update:

And after: