The overview page / dashboard remains empty, existing log drafts cannot be edited because the page remains in the alleged loading process.
The problem exists in the common browsers (kept up to date in each case) with Win 10. Unfortunately, @Chrysalides' solution does not work for me.
The problem also occurs in Android if you use different browsers installed on your smartphone/tablet to log in.
The original geocaching app, on the other hand, works without any problems.