It is possible for a transaction to “fall out” of the mempool you submitted it to. Another great reason to run your own validation node!
That’s weird 🤔 nostr:npub137c5pd8gmhhe0njtsgwjgunc5xjr2vmzvglkgqs5sjeh972gqqxqjak37w have you had this before ? Or maybe cause it’s been already for 2 weeks in mempool ? 
Discussion
I can see it pending in mempool
Which mempool? There is no single mempool.
? its not an exclusion, that your own validation node may "forget" his own txid! running your own node is no guarantee for always being able to bumpfee.