Reminders in Outllok not sync between PC and Android Mobile

Hello,

I used Outllook (2016) on my PC and Outlook Android on my smartphone and my tablet, my mails and my calendar appointments are perfectly synchronised but my reminders are not sync: if I clear an appointement as done on my PC I still see the reminders on my smartphone and on my tablet, the same if I do on my smartphone or my tablet. Is there a way that an action I do on one equipment (clear, delay..) is sync with the other ones? thanks, regards