The Canon EOS R1 and R5 Mark II updates firmware updates promised yesterday are on delay (in Japan).
From Canon Japan (translated):
The release of the following firmware has been temporarily suspended: EOS R1 Firmware Version 1.1.0, EOS R5 Mark II Firmware Version 1.1.0
Thank you for using Canon products. We have received some feedback that the firmware for the mirrorless cameras "EOS R1" and "EOS R5 Mark II" cannot be played back on the camera or PC when using a card with a capacity of over 2TB to shoot video with the pre-recording setting. We have currently suspended downloads to investigate the cause.
We will announce our future response as soon as it is decided. If you have already downloaded the firmware below, please do not update it. We sincerely apologize for any inconvenience caused to our customers.
EOS R1 Firmware Version 1.1.0
EOS R5 Mark II Firmware Version 1.1.0
Canon USA has not pulled theses updates, which are now available on Canon USA's support site.