Searched the forum and only found one similar topic (Keep getting logged out) which didn’t really helped with my issue.
I’m getting logged out of the Designer getting a modal dialog with
“**webflow.com says: **
You are not currently logged in”
After clicking “OK” Webflow automatically logs me in again.
Often I loose my last changes.
I’m logged-in using my Google account. I have logged-out and in manually, deleted my Google Chrome Version 66.0.3359.139 cache & cookies.