I want to display performance values within the graphs legend, the config looks like this:
legendValue(alias(color($metric$, '#5ff442'), 'In'), 'last', 'avg', 'max', 'si')

The issue is that 'last' and 'average' are displayed correctly after new data has been written, but after a certain time, 'last' always shows 0 and 'average' does not seem to be calculated correctly either.
This cycle repeats when new data is written.

The 'max' value is always displayed correctly.