B1 not included in Sen2COR output

[marpet]

The answer is the different resolutions.
At 10m the B1 and B10 bands are not generated only at 60m.

Sen2Cor did not process Band 1 and Band 10

That’s because the 60m bands are not considered when using the 10m resolution option. I think you need to run it again with 60m option to get the missing bands. See also: