Day 24 of #100DaysOfHomelab was focused on the SSD pool errors I encountered yesterday. The errors did come back overnight, so I swapped the drive with another 500GB SSD I had lying around. Thankfully TrueNAS + ZFS makes this a pretty easy process.
I also attempted to swap the 4TB red drive for my Blue Iris box with a spare 8TB drive but Windows wouldn't recognize it for whatever reason. So I had to open the case back up and put the 4TB drive back in. I have used another machine to reformat / re-partition the 8TB drive and will try again tomorrow.