Working with pgAdmin, I've found several bugs. Not sure if they are already reported; couldn't find them on Redmine, but perhaps I missed them. Maybe someone will recognize if they've already been reported. Here it goes...
1) When doing View/Edit on an empty table, I cannot insert anything when it opens. There is no empty row I can write into, like there is when a table has at least one row already. In fact, there are no rows at all, just the header.
I tried. I get an empty row to enter
Test table0: two columns both character varying columns, no primary key, View/Edit opens without any rows as the original poster Arni wrote.
Test table1: three columns, two character varying, one primary key bigint, View/Edit opens with a single blank row as Aditya reported.
Does Arni's table have a primary key defined? Is it a bigint? It looks like there might be a bug where pgAdmin4 isn't presenting a row to add a record from the View/Edit function if there isn't a primary key, or a particular type of primary key defined on the table.