Sage 300 2020 PU5

Importing AR customer records to change the delivery method.

Import screen displays the field and when I select value I get only a selection box with the 4 available values. When I select a value, it appears in the field list as the value text eg "mail", but when I run the import I get the error  "Type mismatch DELMETHOD field should be integer"

Does anyone have a workaround other than editing the text of the import file to enter the value as an integer then import that ?

I am seeing more and more of this type of error. The later the Sage revision, the more places I find it.

Is this just bad programming and worse quality control at Sage?