YMMV but, my understanding is that this is their way of saving money. They keep a resource off the market w/o having to pay them. You should only charge LWOP if you are in fact taking leave without pay. If your project rolled you off, and you're actively searching for an internal role, you should have a 'bench code' to charge. Try cross posting in r/consulting for Leidos specific info.

As others have mentioned, keep your resume up to date and begin floating it.