Echart element does not restore on second tab

I use Streamlit tabs and on those tabs I present some Gauges from Echarts (calling these via streamlit_echarts => st_echarts).

As this works fine on the first tab implemented Gauges does not show up on the second tab.
When I open the second tab and change somethink in the source code the Gauges appear - but changing between tabs only let appear the Gauges on the first tab not on follwing tabs.

Is this a bug and/or any idea what I could do to fix this behaviour?

Thx a lot
Dirk

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