Hey,
I'm having a similar issue, only noticed as the latest episodes of the big bang theory weren't available.
Latest episode shows up in a.b.etc as "347696" for 720p and "347695" for 1080p, both were missed.
Regex collections shows as ...
Ordinal 5
/^(?P<match0>\d+ - \[)\d+\/\d+\] - ".+?([-_](proof|sample|thumbs?))*(\.part\d*(\.rar)?|\.rar|\.7z)?(\d{1,3}\.rev"|\.vol\d+\+\d+\.par2"|\.[A-Za-z0-9]{2,4}"|")[-_\s]{0,3}yEnc$/ui
Ordinal 10
/^\[\s*#?scnzb@?efnet\s*\] (?P<match0>.+?) \[\d+\/(?P<match1>\d+\]) - ".+?" yEnc$/
There are 20 regex in release naming, I won't post them all here.