My old friend is back:
error: cannot fetch snap signatures/assertions: circular assertions are not expected: account-key (8R7QaxAzSVdmrLSHw5E6VY_pojDC01XUUzoZSNZK_iHjBh6xZSdzdlbtm_J7jS6r)
If that account key is in the trusted assertions what could be making it report this again. It’s quite frustrating.