go to https://everhelper.me/client/

and clean your database. then try to sync again.

переустановить пробовали?

Do you mean dials previews disappeared? or dials themselves?

Do you use EverSync or create backup manually on your PC?

When does this happen? FVD Speed dial must refresh all dials at least 1 time. 

Are you takluin about dials or bookmarks?

You can't switch off groups (Default and +  on top)

You can't disable the last tab (speed dial indicator)

You should set No Image

Let's try team viewer session

Это нужно для полной работоспособности аддона

Could you write us y our steps or make the video of your problem?