I've installed Enpass on two Macs, both runs 10.15.4 and Safari 13.1. On one Mac Enpass runs smoothly without any problem, but on the other Mac the iCloud authentication sessions can't keep more than few hours, and need to reauthorize again via Safari. Is there anything wrong with the system or browser settings ? I'm not using Private browsing mode in Safari on both machines. 

Hi @RichardLiu,

We are sorry for the inconvenience caused to you.

For security reasons, your iCloud session expires periodically. To avoid this, you first need to disconnect the sync with iCloud from Enpass settings, then again enable it, and you’ll be redirected to the iCloud login page. Here you just have to enable “Keep me signed in” as shown in the image given in this link. If the problem still persists, please share the Enpass version.

Hope this helps!