If you have been following the transparency page, you may have seen the issues with black ASA from it being blueish black to then being fixed to then having a bubbly issue.
That bubbly issue seems to be back on a select few rolls estimated to be 20/200, the filament itself is fine and the diameter is bang on and it flows just fine, its just that the surface finish may suffer slightly, structurally there is no issue its just aesthetical.
If you do have a bubbly roll even after drying for 12 hours please contact me to rectify the issue and organize a return / replacement.
Issues with filament aren't common but can happen at the volume the factory produces filament. All other colours are fine just the black has an issue!
If you have been having bubbling issues and have been pulling your hair out to fix your printer I am sorry! Again while most rolls are perfect only a very few are having the issue!
