I don't know about planets, but I have noticed in the past, on more than a few occasions, what I can only describe as the game going into "Screw You" mode.
One such example - After spending some time bounty hunting, an enemy will turn up with unusually high defenses and/or unusually strong offensive capabilities. Not usually much of a big deal, except when ammo is low or depleted, and all I want to do is leave. I have no problem putting distance between myself and said enemy, clearing mass lock, and making ready to jump out - either of said ring, or said system entire (high or low wake), and yet, for some reason the FSD simply takes vastly longer than normal to charge OR, despite being dead-center on the Escape Vector, I am told to align with it for however long it takes for that enemy ship to close the distance and do considerable damage.
Thargoids are particularly great for this, bringing a frameshift charge at 80% to a near standstill for however long they like, or however long it takes for them to blast you with one of those nasty corrosive missiles that ensures after you jump out, you're either emergency stopping to superheat yourself clean, fire off a decon limpet, or running like mad to reach a station before you dissolve.
In non-combat situations, I find this happening when trying to operate near a heat source. Such as: Bumped the collision zone of a brown dwarf star. Annoying, but not the worst thing that can happen. Fly away, wait for the FSD to be ready, fly out until heat stops dropping, start a frame shift jump, line up, heat warning sounds, drop a heat-sink, drive finishes charging, "Align with vector".. I am, still aligned, still sitting here. Heat sink wears off, drop another, still aligned, still waiting, heat start shooting up again, no time to drop another sink, FSD jump finally starts, heat's at 140% and still rising, finally locks at 185%, sparks everywhere, nothing I can do about it, jump completed, ship cools down fast, systems fried everywhere.
"Screw You" Mode deactivate. None of these things happen again until the least opportune time.