There’s nothing to see!
I was in open country - no bushes, no doorways, nothing. I was standing in the open ground in front of the first Hangar/Safe House, having fun with the resident Tank. There’s nothing there at all.
You press the button to throw, the animation throws, but you cannot see the grenade in flight, which you think is odd and wait to see where it explodes, so you can adjust your aim.
The hand is now holding what should be another grenade, but is actually the same grenade, which explodes after three seconds, taking you out almost completely. I don’t think I have the spare capacity on my system to take videos - I do a clean boot every time I play! And anyway it is not reproduceable, I don’t think, with any degree of certainty. It would need someone like wotsisname Tenebris Absolute or something - he’s called something different on here - begins with a “T” Ternis or something? to try it out until it happened. If he did it in Uttern Bunker, there’s heaps of grenades to use. Give it to him as a mission! I’m sure he’d help out…
It may happen to me because I use grenades a lot - but it has only happened twice, I think. Bloody irritating when it does!