Hello,

Thank you for the nice words :)

Regarding refreshing thumbnails, currently resolution of thumbnail is determined by the target dial dimensions when you create it - so if your browser window is not maximized when you reload thumbnail, you don't get optimal resolution. This should get fixed by upcoming big upgrade with auto-reload feature.
However after that I suppose I can still add "Reload by visit for group" feature, so stay tuned :)

Regarding the issue with import, I just fixed one bug there so please try again with current version 5.6.
If it won't help, please send me your backup file to my support e-mail and I will try to fix it.

Hope this helps :)

Have a nice day!

Best regards,

Juraj Mäsiar