Allocating passive points that I do not have

When using weapon set passives, I can alloate points beyond my current total, however they do not provide power, and they still cost gold to respec.

First clip on my main:
https://youtu.be/qCDdjHZFxh4
I have one unallocated point to spend, and was trying to set points in this block wheel on weapon set 1, but ended up putting a whole bunch extra.
Then went over to a new character to try and replicate the steps in this clip:
https://youtu.be/Z6xVx73G7Xw

Explaining the steps:
First showing my weapons do not have stats, energy sheild or mana regen on them
Next put 2 points in weapon set one (RED) into strength
Then 2 points in set two (GREEN) into dex
I now have zero unspent points in total or either weapon set.
I then allocate 2 more points which appear as gold onto energy sheild.
On checking the stat screen, evergy shield is unchanged, however the strength and dex totals change correctly on swapping weapon.
I then pay to unspec the 2 energy sheild points.
Next, to my great surprise I try 2 points in mana regen, and these appear to be assigned to the BLUE weapon set?? No change to my mana regen stat.
And then for good measure, another 2 points (cast speed and spell damage) showing as gold again.
All four of these also cost to respec.
Then tried again elswhere, got 2 points in gold set and 2 points in blue set.

I was trying at each step but was unable to assign more than 2 additional points.
This also matches the state of my tree in the first clip, I had 12 points used for weapon specialisation, and was able to allocate a total of 12 points that weren't actually providing a boost.

I just posted a thread with the same problem. Good to see I'm not going crazy. I was curious about the nodes actually aiding my skills or not. Hopefully we hear something soon. I have about 15 nodes that are allocated in this way and affected by this bug.