If your system is setup as an ESS 'Energy Storage System' it is normal for all loads connected to the MultiPlus output to be treated/shown as 'Critical Loads' as they will remain powered by the inverter/battery if AC Input is disconnected.
With a grid meter connected, any loads connected directly to the AC Input side will be treated/shown as regular 'AC Loads' since they will be disconnected in event of a grid failure.
https://www.victronenergy.com/live/ess:design-installation-manual
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