Canon has released firmware Version 1.3.2 for the EOS R1 and EOS R5 Mark II. These are minor updates, but they do rectify a few bugs.
EOS R1 Firmware Version 1.3.2
- Fixed an issue where the Live View display would sometimes experience lag when shooting with the EOS Multi Remote app.
- Fixed an issue where, during synchronized shooting with EOS Multi Remote, the receiver camera might fail to capture images if the sender camera was using an FTP server connection.
- Improved overall operational stability.
EOS R5 Mark II Firmware Version 1.3.2
- Addressed an issue where the Live View display would sometimes experience a delay when shooting with the EOS Multi Remote app.
- Fixed an issue where, during synchronized shooting with EOS Multi Remote, if the sender camera was using an FTP server connection, the receiver camera might fail to capture images.

