Took me a minute to replicate the bug, but yea, I see it now
Weird bug,
I already implemented custom filters internally, but the "missing checkboxes" were using the Regex instead
Since most of the Regex are the same value as the custom tags, this had escaped my notice
Currently my build doesn't distinguish between Tags, Regex, and Name. All of them are stored as Strings instead. I should enforced strong-type.
Thank you, fixed in 1.98