Monocle2 orderCells error: the condition has length > 1

[gebdu]

library(monocle)

combined
An object of class Seurat
23572 features across 13696 samples within 1 assay
Active assay: RNA (23572 features, 1257 variable features)
3 dimensional reductions calculated: pca, tsne, umap

cds <- as.CellDataSet(combined)
cds <- estimateSizeFactors(cds)
cds <- estimateDispersions(cds)
cds <- monocle::setOrderingFilter(cds, mc@assays$RNA@var.features)
cds <- monocle::reduceDimension(cds, method = 'DDRTree')
cds <- monocle::orderCells(cds)

Error in if (class(projection) != "matrix") projection <- as.matrix(projection) :
the condition has length > 1

Any suggest what this error says and how to solve this?

sessionInfo()
R version 4.2.2 (2022-10-31)
monocle_2.26.0 DDRTree_0.1.5 scater_1.26.1

[gebdu]

Solution discussed here:
cole-trapnell-lab/monocle-release#434

updated version monocle_2.28.0 solved this problem.