Hi Nick,
I have had this issue for probably over 1 year, and nobody on the forum or online was able to help me. Daedalus is junk - this is the experience of many. I still try to get the latest running from multiple computers, using multiple networks…no dice
Check out out my long thread here, where I just vent about it and many post their “fixes” or vents.
In the end, I went to Yoroi. Yoroi work extremely well for me, including multiple accounts. However, now that I am trying to switch over from testnet to shelley, well no cigar. I am waiting patiently for Yoroi to get their ducks in a row.