More like a forensic examination. Need to work out where the leak was coming from. Am hoping it's quite obvious/straightforward and not something as lame as a porous tyre.
It can be as lame as that of taping or valve. The a23 is what I class a semi tubeless compatible. The rim cannot keep the tyre seated reliably within no air pressure which is useless unless you keep them pumped up.
and a few posts later
Just how badly did it go? Are we waiting for a Coroner's Enquiry?