Two things come to mind
- You are very likely tired / fatigued from all the recent BT efforts - take it easy for a while and then try the longer effort again
- Your HIE may be low. It is towards the lower end for your sprint power, assuming that’s actually correct / max(?), according to this, and I think your ratio with this formula is also low. Usually you see low (relative) HIE in people with well developed aerobic systems, rather than relative beginners. If out, it would lead to TP being too high
Practically, you can flag the BTs that give too high a TP, and then make sure your next BT is a longer one… I think the issue is that lack of longer breakthrough. (Also try a sprint at some point to make sure PP is correct). Or the support team could fudge it for you in the meantime (by going into the BT and lowering TP and raising HIE and saving the result), but not sure how much confidence that gives