We recently had a bug in the next-privilege tracker on the profile page. The progress bar was really thin, but it looks like that's been fixed now.
However, a new problem seems to have emerged: the outline of the bar is larger than the colored region on my most recently created profiles. It's only visible when I'm looking at my own profile: it's not visible not when I'm signed out and I don't observe it when I'm looking at other users' profiles. I was able to observe it only on sites I joined today (both beta sites like engineering (and 3D printing) and themed sites like Puzzling). It does not show up on sites which I joined earlier but maintained inactive accounts on: I have had a Chemistry SE account for a while but I have never posted or voted (or done anything else) using that account, yet this problem doesn't appear there.
The way I observed this:
Find a site where I don't have an account and I've never tried to do anything at all, create an account by clicking "Join this community" (top-right corner)
Immediately view my own profile, click "track next privilege" when it tells me that I can edit community wikis.
Visiting the profile again, after closing and reopening the tab, the problem does not go away.
As you can see, the colored portion of the privilege tracker is really small. I observed it while being signed in (looking at my own profile) on both Google Chrome (latest build for windows 10) and Brave (latest build, windows 10).
It looks like the problem is that the whole bar is too tall; when I viewed it without being signed in, the bar was thinner. Can this be fixed? It's not particularly commonly seen: it may disappear once I post something and get a 'top tag', but it's not very pretty.