First of all, we would like to apologize for the delay in replying to your post.
If your point is still relevant, I would like to ask you if you have moved the jumper related to 1-Shunt configurations on the IHM07. They normally are set on 3-Shunt configuration, this may be the issue you are facing.
If you agree with my answer, please consider accepting it by clicking on 'Accept as solution'.Hope this will help,Gaël A.