I feel like I should already know the answer to this but: Why can I only see replies to some notes, but can’t see the origin note? #asknostr
Strange also since looks like you have many relays connected to 🤔
Because you're not reading from the relay that the original note was written to, and 1 or more of the following 1) nobody that replied to the thread rebroadcast it to a relay you read from 2) nobody tagged the pubkey in a reply to the original note for which your client could conceivably do a relay list metadata lookup 3) your client may not support NIP65 4) your relays may be throttling requests from you
it is also possible that the original note was marked as "deleted" by the users client. Some clients hide notes that are marked as deleted if im not mistaken.