I was just checking all of the separate summaries on my system and found some errors when comparing to the monthly detailed page.
Generation, Consumption, Balance, Efficency, and Import all match between the monthly detail view and the summary.
For mine at least Export and Net do not match for Feb-Jun, July-Current all match up fine. Now I will point out that Feb-Jun I was manually entering the Energy Exported and Energy Used as I did not have consumption monitoring installed yet on my system. My first full day of consumption data from Enphase was Jun 28th. So, I’m assuming this has something to do with it and I’m not sure if there is some way for me to correct it.