Illumina methylation Epicv2 array probe names matching

[xli83]

I got some probe names by using following with R minfi package. Use an example to show:
Step (1): w <- readRDS('/x/my_raw.rds')
Then: w2 <- getAnnotation(w, what = "everything")

Step (2): pro_norm <- preprocessNoob(w)
name2 <- rownames(pro_norm@assays@data@listData$Meth)

My question is: why rownames(w2) does not completely matched with “names2” in above process?
Thanks!