Contributions rejected twice, despite proof links

In the first case I've updated (#211026-022113-719000) The Thing (1982) with six additional "Other crew" listings for a photographic cameos shot specifically for the movie, as confirmed by a blog post written by film's co-producer, with extensive illustrations. Five went through with no problem, but Dick Warlock's listing was declined with reasons stated as "Unable to verify".  I have resubmited, extending the statement (#211026-102604-179000). It was declined again, reason again stated as "Unable to verify". 

A very similar thing recently happened with #211010-023630-044000. There was a digital screening of Zabij to i wyjedz z tego miasta (2020) which basically allowed temporary access to a digital screener - a unique opportunity to correct at least some of the listings for a recent release using end credits themeselve and eliminating a middle point of extensive records (or at least the need to write down/screencap everything). I did exactly that and corrected/updated most of the cast, except for five people who were rejected due to "Unable to verify". In hindsight one listing (Gustaw Holoubek) should also have "(archive sound)" attribute, but they were all in the end credits. I can attest to that.   

Finally, in case of a music video Errors in Geography: Behind (2015), which is my own directorial work, my uncredited cast listing was declined in the original submission (#211025-235058-697000) and then separately (#211026-102308-978000). I know that cast credits often get vandalized and are notoriously prone to erroneous submissions, but frankly the fact that this happens regularly and with no logical explanation continues to be an equally regular source of frustration. Whenever submitting titles I have directed myself I expect 50/50 chance of my own cast listing being  rejected. For some reason it also rarely happens with other cast members, so I start to wonder whether it is something related to having IMDb Pro. There is also a whole instruction attached to declined items now, that, I admit, should be very useful to beginners, but quickly becames very ironic and frustrating to experienced users, especially since more often than not it pops up on items that have explanation.