[Observium] Dashboard: add don't work anymore

Hello List

recently some mails are going to my spam folder so I apologize if this question was already made.

since last major update I cannot assign some graph to the dashboard anymore 20.7.10549 (3rd July 2020)

I see the arrow right to the dashboard but if i move on it nothing happens, cannot choose a graph.

I tried diffrent browser, delete also the cache.

Regards Walter