I think this is very probably it. For those scattered blocks where there are 3 sats/vByte transactions or even lower, there's a huge jump to the next category of fees, often something like 16 or so. 

So it makes perfect sense that the big mining pools are including these, because these transactions are their own. But they won't include anyone else's transactions.

Hopefully Sunday morning (when fees are often low) it'll get pushed through. Otherwise I'll need to figure out the whole CPFP - child pays for parent idea. It looks really complicated.




Signal312

bitcoin

I set my transaction fee low, but shouldn't my transaction have gone through? 

It’s a fair question. Miners can be selective as to which transactions they include. Could be their own that they prioritize when fees are low, so they lose less revenue. Could also be that there were just more pending transactions than available spots in the blocks and yours just wasn’t selected. 