I have noticed the same behaviour recently with some PCF components. Data was not appearing in the component. Refreshing the browser or opening the record again makes the data appears.
Clearing the cache makes the data disapear again.What i found out was that for most of the fields in the form, data takes a few seconds to appears the first time we open the form. Before the data is correctly retrieved from CRM. When the data is finally retrieved, fields are correctly filled, except for the PCF component, where the data stays blanks, this is due cause the updateView() method is not correctly implemented in the PCF component.If you use a builtin subgrid, and you are experiencing the same behaviour, I think you should open a support ticket to report a bug.Just try to refresh the cache to see if the error appears consistently just after.Best Regards,
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