With the latest beta .282, there is something wrong with the RC command. After I start my usual mount, I run "rclone rc vfs/refresh recursive=true --fast-list -v" to prime the content. It now comes back with the following:
Thanks Nick! Running with "_async=true" did the trick, but I will also try with "--timeout 10m" instead, because I like to actually see when it's done. One thing I noticed is that with async, the whole process seems to complete quite a bit faster. Could be placebo, though, since I didn't measure it.
To answer your question, priming usually takes between a minute and a half to two minutes. One thing that's always bugged me a bit is that I can't see the progress, even though I use -v. Would adding another v show what it's doing? Also, is --fastlist used by default, so it's not necessary to use the flag?