I was an enlisted sailor aboard the USS Mount Whitney when it experienced a major fire in the shipyards in Croatia and extended our visit by months[0]. Career growth was halted during that period for nearly everyone as they spent months babysitting contractors and standing extra watches with only the slightest bit of valuable training conducted over the period.
[0] https://news.usni.org/2015/08/03/command-ship-uss-mount-whit...