Lightning Arrow + Lightning Rod doesn't Chain as it should

Hi,

I'm currently playing a lvl 10 Ranger and my build utilizes the lightning beam chain to trigger the lightning rod burst multiple times and shred areas, at least that's the idea. But I gradually noticed that the damage was underwhelming somehow, so I tried to find out what was going on.
And... the chaining doen't behave as described on the skill.
Let me explain how I understand the skills and what behaviour I would expect first before I tell you what happens actually in the game.

Lightning Arrow and expected behaviour
Lightning Arrow: "Fired a charges arrow at the target. On hitting the enemy or wall, the arrow will fire Chaining Lightning beams at nearby enemies."
The skill has the projectile part, which says that it "Fires beams up to 2 additional enemies near the target". Ok, and what about the beam itself? Under the beam tab it says: "Chains 2 times". Chains when hovered says: "Effects that Chain are redirected to another target after hitting an enemy. [...]"

Aright, so the I would therefore expect the lightning arrow to hit a wall (or enemy, but let's take wall to make it simpler) and then if in range shoot 2 lightning beams at 2 availabe targets (lets say only 2 enemies are near the wall). Then each beam that reached the first target after the wall should each have 2 chains remaining, cause they did not chain yet (wall to enemy is not a chain, since it's from lightning arrow firing the two beams). So each should chain to their a target in range (the other target of the two, the one next to the first) and now with only 1 Chain remaining it should then chain back the the first target it came from (since now 0 Chain left). And both beams should do that, each one chaining 2 more times after getting hit by the beam, meaning it should with the 2 beams fired chain 4 times. Well... that doesn't happen.

Actual behaviour in the game
Lightning Rod is supposed to act like an enemy since "[...] The arrow remains in the groud and any Chaining Lightning beams can Chain to it. When Chained to, the arrows release another Lightning burst."
But, the behaviour is very different. By testing this with a wall for the Lightning Arrow to break and send the beams on and with Lightning Rods near the wall for the beams to chain on, I found:
- If I position the Lightning arrow so that on wall break only one Lightning Rod is near it I can make it that only one of the two possible beams are fired. And with multiple Lightning Rods on the ground one spaced out next to the other the beam should hit the first rod and then chain 2 times, so chain to the second rod and then the third and then stop cause the 2 chains are depleted. But it continues to chain to all rods it can reach creating like a wave. How can one beam chain to 6 or even more rods if on the skill itself it says "Chains 2 times"? It also never chains back and forth if there are two rods, where the beam should reach the first, it should chain one time to the other and one time back for a total of 2 Chains. It doesn't. It only chains once to the other and never back. Always like a one time wave. If the other of the two rods was also in range for the beam coming of the wall, they dont even chain once (and by the way, technically the beam hitting the first rod after the wall should not create a Lightning burst off the rod since the beam being fire is not chaining, it's part of the beam firing of Lightning Arrow. The burst should only happen "when Chained to").

All of this I tested multiple times. Also having real enemies did not change anything. It behaved like the rods, so it has not all to do with the rods. I tested this just to make sure.
The whole interactions don't behave as they should and it's very confusing. The skill and effect descriptions don't accurately describe the actual behaviour.
Can someone explain to me what is going on? Am I missing something or is it actually a bug or missleading discriptions?

Thank you

Edit: I just realized that the support gem makes it chain 6 times instead of 2. But that still doesn't explain why the 2 beams shot simultaneously don't make 2 waves chains through the rods. And also why chain doesn't go back to previous target and thus chaining back and forth between two.