So - I think its fixed. There was something in this new update release that highlighted an issue with my config. I had the kithcen bench power in a sum with all the others as a helper, then I had another helper that had the kitchen bench in again as a to to something it was already in - so it was in two helpers.
This has been in there incorrect for a while I guess - and the system was allowing it to be counted twice. but this release stopped that from being allowed and threw the above error (not a great help but forced me to look in detail of the helper).
And my other issue reported with the import and export sensors not updating - this used the same helper in their calculations - so thats why they failed to update after a few seconds - again - this was introduced with this later release.
@vwkombi can you elaborate a bit on that? I have the same issue using powercalc.
If I understand well, you had an issue in your config which only manifested with the new HA version.
So you had the kitchen bench in two helpers. What does that mean?
I may not have documented it well. I had a helper that listed the same sensor in another calc that was then used in this one. Which was allowed (prob erroneously) and then later update caused the ussue. I just had to remove the sensor from the helper