DataGridView TextBoxColumn editor shows then goes away

I’m using a DataGridView in a Wisej.NET 3.5 project. I have a DataGridView with a BindingSource assigned. It gets assigned a List<> of a specific type of object. There are no read-only columns. When I edit a new or existing row, I can type data into the first column. Then, when I tab into the next TextBoxColumn, the text becomes editable for a split second, then the editor goes away. After that, I can no longer edit any TextBoxColumn in the row.

This is a C# application created using Visual Studion 2022 on Windows.