2025.12 upgrade problems

I upgraded to 2025.12.2 and seem to have hit a number of problems. Can somebody point me in the right direction please.

1: I had a lot of legacy templates, probably about 40. I’ve fixed them using the code in the the messages, so thank you to developers for the very good messaging as it just ended up as copy pastes on my part.

2: I seem to have lost a device in the myVAILLANT integration. Unfortunately, it contains all the energy entities. I’ve failed to find a solution to getting them back. I’ve deleted and reinstalled the integration and checked github but drawn a blank on a solution.

3: I get the following repair message which again I can’t see a solution to.

Unknown intelligent provider “MYENERGI_V2”

Warning · Reported by Octopus Energy

You have an intelligent provider of “MYENERGI_V2” which is not recognised and therefore a reduced feature set has been enabled. Click on “Learn More” with instructions on what to do next.

Maybe I’ve been looking in the wrong places, but currently stumped as to the solution. I did click on the ‘Learn More’ which took me to this page: Repairs - Unknown intelligent provider - Home Assistant Octopus Energy

There seems to be three charger devices in the Octopus Energy integration that all point to the Zappi, Which I currently do not use.

Any help appreciated, thank you.

Read thru this, especially the OP’s posts. He provides several tools to help with this.

Here is the place to read about and post questions on that.

Item 1 was really a thank you to the developers for making the migration easy. I used the referenced post but realistically did not need to as all the information was in the repair messages, and in the code needed as well.

Item 2: I had checked there and could not find anything, however, will now post my issue to that discussion.

Any thoughts on item 3?

Thanks for your help so far.

I’d post a new question in the Energy - Home Assistant Community category for that.