I am interested in obtaining the methylated and unmethylated signal intensities. I am using the sesame package, and obtained the sigDF object as follows:

sdfs = openSesame(baseDirectory,prep="QCDPB",func=NULL,BPPARAM = BiocParallel::MulticoreParam(4),platform = "EPICv2")

I get, for the first sample something like this:

Probe_ID                MG MR      UG        UR         col  mask \
cg00000029_TC21 NA NA 2709.775 1046.9992   2 FALSE 
cg00000109_TC21 NA NA 2770.632  288.9767   2 FALSE 
cg00000155_BC21 NA NA 3668.775 230.5298   2 FALSE

Can't find the definitions anywhere but I am guessing that MG, MR, UG and UR are what I am looking for (methylated green, methylated red, unmethylated green and unmethylated red). However, it seems that MG and MR do not have a lot of data:

sum(!is.na(sdf[["sample1"]]$MG))

[1] 128295

sum(!is.na(sdf[["sample1"]]$UG))

[1] 937688

Is there something that we are missing or does this look normal and correspond to the methylated and unmethylated intensities?