Bug: "containerize" branch does not complete batch correction

[wong-nw]

Describe the bug
New error in containerize after correcting the DoubletFinder bug. Workflow does not complete batch correction. Merging is completed.

The following error is repeated in all batch correction workflows:

  processing file: batch_correction_rpca.Rmd
  Error in `.local()`:
  ! The following layers are already split: 'counts.1', 'counts.2',
  * 'counts.3', 'counts.4', 'data.1', 'data.2', 'data.3', 'data.4' Please
  * join before splitting
  Backtrace:
      x
   1. +-base::split(so[["RNA"]], f = so$Sample)
   2. \-SeuratObject (local) split(so[["RNA"]], f = so$Sample)
   3.   \-SeuratObject (local) .local(x, f, drop, ...)
   4.     \-rlang::abort(...)

Expected behavior
Completion of workflow

Additional information
Suspect that current error exists in scrna_functions.R. Will examine both Rmd scripts and underlying function calls