Long text column not displayed in the second row only

[DavidFr27500]

Hi All,

I have a long text virtual column in a table uses only to (re)format an enumlist column of the same table.

The formula is :
concatenate(" ⦿ ", SUBSTITUTE(concatenate([Places]), " , ", " ⦿ "))

The virtual column is shown in the detail view only when the enumlist column is shown in the form view only.

I add a first row in my table. Either in form and detail views, columns are displayed correctly.

Second row : in the detail view, the long text virtual column is empty !
More rows : everything is displayed normally again.

An explanation ?

Some screenshots so you can see the data structure :