I'm having the same issue. Although the extent of it is new. Even when I first tried the game on release day the issue existed but the game would only freeze for a moment and then would return to normal. Now however, I'm having it every time I click on them fleet screen. I have 8 GB of RAM, enough to play the game smoothly without stuttering or lag but low enough so that when the error happens I can't even access the task manager.
I'm pretty sure that they did that largely in order to make the Necron's ability unique, but as it is it's to under powered and the teleport can be used to infrequently to make it really worth it. If the repair rate of Necron ships were increased a bit and maybe most factions given a small hull repair rate, then everyone could be happy. I also agree with you on hit and run being a very viable tactic; it's how I used my Chaos gunboat fleet in BFGA 1, it actually worked just as well as my lance fleet if not better on a good day despite Chaos's reputation as a kiting only fleet.
Sorry, I didn't look closely enough at the image. It IS strange. Although I can actually answer your question about that. I decided to make a fleet entirely out of Retribution battleships and use them in a bow to stern line throughout an entire battle against Chaos for the lolz. Even without lock on, if the batteries hit, the enemy ship would take damage. With lock on, which is a stance which you can use throughout the entire match now, they actually worked better than Chaos's lances at long range; I won pretty handily only losing about 2/3s the health on my leading Retribution without any notable damage to my other ships. This is why I think lances need to have better crit chances, so that they are actually viable alternatives.
Did any ship ever launch an augur disruptor at you? A kind of bomb-like thing or explosion from the ship itself that looks kind like an expanding augur probe effect? That kills your view distance and what you're talking about sounds a lot like that.
Also, augur probes don't seem to detect anything within their radius if you just launch them point-blank. Probably for balancing so that ships that were disrupted couldn't negate it with a quick augur probe launch. Although that was back in the first game when every ship could have an augur probe, so it would actually probably be a little more fair if the augur probe could do that.
It's definitely is a bit weird, but it's nice to be able to use plasma macros at that range at all. Long range is supposed to be a lance game but unfortunately the fact that they hit with 100% accuracy at any range seems to be their only redeeming quality, they are otherwise pretty terrible IMO. If accuracy for plasma macrocannons were to be improved then there would be absolutely no reason to have lances at all, and the game would just turn into one giant macrocannon spam; more so than already. Chaos lance boats would be replaced by the Chaos gunboats in all things much like what's happened with the Imperial Navy.
I definitely agree with PointDexter, perhaps you could just use the same combustion gauge system and have the teleport just remove at chunk of the gauge at one time? The exact number of uses length of the full cooldown would require some tweaking but I think it would probably work well for everybody once properly balanced.
I haven't played any multiplayer yet but if you can't tell what faction your opponent is it would definitely make things pretty annoying. If you accidentally try to use an Imperial Navy close-in brawler fleet against factions that are just better at it, battle results could be pretty weighted toward the guy with the dedicated brawler faction.
I tend to agree with ravagerX on all points (especially the comment about ship combat, the main reason I love this game so much), and it would also be nice, and work with his point if the Ship Info display were significantly smaller. As it stands, as useful as the ship info display is, it feels like it clogs up an unnecessarily huge portion of the screen. Maybe you can make the ship picture smaller to start, or possibly hideable; that would probably help a fair bit.
I think the fact that the hulks remain stationary is intentional.
On topic though, I've noticed a bug where the game doesn't end even after you turn every enemy ship into a drifting hulk. I feel like I may have seen this somewhere else but I can't remember where; if so, sorry for the redundancy.