As I guessed, the R got it's new firmware this week, and it's a stinker...I mean, nice for burst in electronic shutter, but that should have been day one.
Canon EOS R Firmware Version 1.1.0 incorporates the following enhancements and fixes.
1. Support for "continuous shooting" is available when "silent shutter" has been enabled.
2. Corrects a phenomenon in which an error may occur if there is a large number of files in a specific format on the memory card.
3. Corrects a phenomenon in which an error may occur when silent shutter has been enabled.
4. Corrects a phenomenon in which horizontal linear noise may occur when using specific lenses together with certain recording image quality settings.
5. Corrects a phenomenon in which the information displayed in the viewfinder may become abnormal.
Also an interesting infographic that shows what a bad last few years the camera industry has had in general.