UI crashes with error "Error in [[<-: 0 elements in value to replace 103766 elements"

[sciotlos]

Hello,

I've tried scSTEM with both the sample data and my own data. After loading the data, I try to proceed to the UMAP step. However I get the following warnings and ultimately the GUI crashes. Here are the warning and error messages, when I try to run with the sample data:

Warning in monocle3::new_cell_data_set(expression_data = rv$counts, cell_metadata = rv$cell_meta, : gene_metadata must contain a column verbatim named 'gene_short_name' for certain functions.

Warning: Error in [[<-: 0 elements in value to replace 103766 elements 3: shiny::runApp 2: shiny::runGadget 1: run_scstem_GUI

So, it seems to make it past new_cell_data_set, except for the 'gene_short_name' warning. However I can't figure out where exactly it's crashing. Any idea why this is happening, even with the data included with the package?

Thank you!