I encounter the following problem, I have some repeating appointments (2 or 5 days) in Epim Pro on my computer. After syncing Epim Pro and my Ipad, my Ipad calendar displays the repeating appointments but decreased by one day

If i check the properties of the appointment on my Ipad, the repeating settings are right, as it is on my computer, but not displayed on Ipad.
I did a full reset of my Ipad and did a new sync from scratch with my computer but the problem is the same... see my signature for technicals details.
If someone could help me to solve this problem I thank you by advance because it's not usefull at all !
Thanks a lot !