#primal is really weird, I have so far a bad experience with it, here is another example:
I follow Grinch, Grinch follows me, but according to Primal Grinch doesn't has any followers... so absurd... Using Primal less and Amethyst more...
Discussion
#Primal is known to censor and ban npubs, I would guess Grinch may be in a list they filter the npub out for followers and maybe posts...
Why to keep using it? I guess you have iOS as well as Android... stuck with it? maybe Damus or iris.to installed with brave browser could be a solution
Amerhyst is my preferred client.