In remittance advice emails, the @CompanyName@ token goes out with the text “@CompanyName@” rather than the name - which should clearly never happen. One of my suppliers replied “thanks” to the email and I could see the token in his reply as well as seeing it in the email log for multiple emails today.
The only thing that’s changed for me since it was recently working is that I’ve added the new “@PaidInvoiceList@” token.