Comment by biztos

I've seen the same thing, off and on, for over 20 years.

Employee or contractor gets stuck somewhere with nothing much to do... speaks to manager about it repeatedly... gets the "just find something to do, we'll get to you" speech... fails (often despite good-faith effort) to find anything useful to do... and eventually gives up.

Worst case I personally witnessed was a quite talented dev going six months without any actual project, then another couple before quitting.

Another case was a guy who tried to use his abundant free time to learn other skills but mostly ended up playing Myst, which proves this phenomenon is as old as dirt. :-). (He ultimately gave up the Myst Gig and quit, I'm sure to the consternation of his manager who probably lost a head-count over it.)