do.olda stopped working

[nspyrison]

library("Rdimtools")
#> ** ------------------------------------------------------- **
#> ** Rdimtools
#> **  - Dimension Reduction and Estimation Toolbox
#> **
#> ** Version    : 1.0.8       (2021)
#> ** Maintainer : Kisung You  (kisungyou@outlook.com)
#> ** Website    : https://kisungyou.com/Rdimtools/
#> **
#> ** Please share any bugs or suggestions to the maintainer.
#> ** ------------------------------------------------------- **

# use iris data
data(iris)
set.seed(100)
subid = sample(1:150, 50)
X     = as.matrix(iris[subid,1:4])
label = as.factor(iris[subid,5])

## compare with LDA
out1 = do.lda(X, label)
out2 = do.olda(X, label)
#> Error: $ operator is invalid for atomic vectors

^{Created on 2021-07-14 by the reprex package (v2.0.0)}

[nspyrison]

also do.pca(), looks like a Rcpp issue/change?

R> out1 <- do.pca(X, ndim=2, cor=FALSE)
Error in dt_pca(X, myndim, mycor) :
function 'Rcpp_precious_remove' not provided by package 'Rcpp'
R> out2 <- do.pca(X, ndim=2, cor=TRUE) ## Hangs the RStudio session

[nspyrison]

Reverting the past several version of Rcpp dfidn't help.
After some trouble, installing latest Rcpp works.