Error: Unknown white reference

[lapotok]

Hi, I sometimes have this weird error even if I just load hues library. I still can't create a reprex for this issue, bacause I haven't figured out under which conditions does it happen. It's just I do some stuff with data wrangling and plotting and then R suddenly gives me this error at some point when I run ggplot() using a character column to map to a color. I'll try to track this error, but maybe you have an idea on when does it come from. If I reload R this error vanishes. Thank you in advance, Evgeny