Incorrect readings on A, B and C clamps

[Cybgak]

After a recent electrical fault I had to replace my Vue that I'd flashed to ESPhome which had been working perfectly for many months.
I bought a couple of new ones and flashed as before to the latest version of ESPhome.
I connected one in to my three phase distribution board as before and everything seemed fine but I noticed the power readings for the 3 main CT clamps were the wrong values, some zero and the others not matching the sum of the individual circuits so clearly wrong.
Thinking the fault was probably with that unit I installed the other new unit that I'd just flashed, but that too had the same problem.
I then flashed one of the units with a modified config that allowed negative values on those CT clamps and to my surprise the 2 clamps A and C that had been giving zero values actually had negative power values.
Then I thought I should eliminate the possibility that either the clamps were the issue or I had damaged whatever IC reads the values from them so I attached all three clamps to the phase B wire and amazingly they all read the same value give or take the usual calibration errors. This demonstrated that the clamps were all behaving the same and presumably the circuits must be ok as they were all reading the same value.
I've tried going back to an earlier version of ESPhome but I can only go as far as 2023.8 before I start getting errors in the ESPhome dashboard when I'm trying to perform operations.
I also checked the voltage of the U2 regulator as it was mentioned in a post with similar issues and it's at 3.29V so I don't think that's the issue.
Does anyone have any idea what I can try next? I did look at the source code to see how the power values are calculated but it's 30 years since I wrote anything in C so I'm totally out of my depth if I'm honest.
All the other sensors seem to have sensible values just not A, B and C.
They're all V5 boards if that helps.

[Cybgak]

Ah looks like the electricians who came about a week ago connected the phases up in the wrong order!
All that faffing about and I just had to switch the phases round on A and C now it's reading fine...