So like I said in the title I have an issue with metaballs disappearing when renamed, only leaving the outline visible. For renaming I followed this guide https://youtu.be/Y7R2_F-ZukQ?t=330 and I do not get the same result. When I rename them back to Mball, they reappear. When I try this process in a new clean file it works without any problems. Does anyone possibly know what might be causing this to happen?
This is the new name, it still follows the naming guidelines:
But I get this: