[Kibana timelion] Error in the continuation of the trend in the future (fit function)

Hi,

I am trying to create a timelion chart with the aim of plotting the trend over time of my size field.
I would like the line to continue in the future with the latest available data after today's date.

I am using version 8.1.3
This is my timelion expression:
.es(index=my_index, q=field:value, metric=sum:size, timefield=timestamp).fit(nearest).label(size).divide(1024).precision(3)

In version 5.4.0 my graph worked with this expression.

This is the current result:

Thanks

Daniele

@Stratoula_Kalafateli can we please get some help?

Thanks,
Bhavya