Anyone met this problem recently? I used impute package for long time and have never met this problem before. However, it seems this problem come out in the current lastest impute package, right? 

Package ‘impute’ September 12, 2016 Title impute: Imputation for microarray data Version 1.46.0

> library("impute")
> library("preprocessCore")
> beta.normal<-impute.knn(data.matrix(beta),rowmax = 0.8)
Cluster size 485577 broken into 269225 216352 
Cluster size 269225 broken into 162819 106406 
Cluster size 162819 broken into 94634 68185 
Cluster size 94634 broken into 70972 23662 
Cluster size 70972 broken into 25279 45693 
Cluster size 25279 broken into 10082 15197 
Cluster size 10082 broken into 9838 244 
Cluster size 9838 broken into 7251 2587 
Cluster size 7251 broken into 6018 1233 
Cluster size 6018 broken into 2928 3090 

Done cluster 0 
Cluster size 2691 broken into 0 2691 
Done cluster 0 
Cluster size 2691 broken into 5 2686 
Done cluster 5 
Cluster size 2686 broken into 0 2686 
Done cluster 0 
Cluster size 2686 broken into 0 2686 
Done cluster 0 
Cluster size 2686 broken into 0 2686 
Done cluster 0 
Error: evaluation nested too deeply: infinite recursion / options(expressions=)?
Execution halted
Error: evaluation nested too deeply: infinite recursion / options(expressions=)?

Thanks.