LGT-92 tracker data not stored on Cayenne

My LGT-92 tracker worked fine on TTN V2, but after changing the tracker and the gateway to V3 I can’t see stored data points on the map any more. The data arrives correctly and is shown in live data, but as soon as I click somewhere, the data is lost. Changing to map view a new data point is shown, but instantly lost when clicking on another widget. How can I make Cayenne store my data for at least the same day ? Tracker is V1.6

you can view the history in the Data tab.

Cayenne still tells me, no data available in the chart. It worked fine until the change to V3, but since this all old data cannot be accessed any more, even if I try to download them.