Sorry been crazy busy, finally have time today to address this, I have tried the twenty fifteen theme with & without any plugins activated, same issue,, I will follow up on other steps you suggested next.. It still puzzles me since i had over 1000 more events listed & the month view was working fine with the free version & minutes after the upgrade i checked month view and this all started, correct me if i am wrong but my thought is the upgrade just added a few additional features to the core free version as that is why i still need to keep the free version activated? if that is the case, can i de-activate the upgrade and see if all is well as it was before the upgrade? In the meanwhile i will pick away at your suggestions Thanks!