Orca Error in processx::run(“orca”, “-h”) : System command error

I followed the conda installation approach from: Orca Management | Python | Plotly
conda install -c plotly plotly-orca==1.2.1 psutil requests

I can save plot image successfully using Python/Notebook scripts; however, the simple R example gives error:

library(plotly)
if (!require("processx")) install.packages("processx")
fig <- plot_ly(z = ~volcano) %>% add_surface()
orca(fig, "surface-plot.svg")

=> Error in processx::run(“orca”, “-h”) : System command error

Any help in finding more troubleshooting information is highly appreciated.