Hello.
I seem to be unable to remove certain tags. For example, I cannot remove the male tag from this post:
https://e621.net/posts/1742148?q=hioshiru+mammal+mustelid
This post was marked as male/female, with a bunch of related tags that I have removed, because the penis seems to actually be a dildo (you can even see the stand at the bottom where it's holding it in place). Anyway, it also had the male tag, which I cannot remove, and I have tested this on another post to which I was also unable to remove said tag.
I've had other issues as well, like being unable to remove the canine tag on an earlier though, though when that happened, I just considered it as a one-off, but the problem now seems to be more systemic than I had previously anticipated.