we have a problem binding a column from Excel file to a dynamic target. Although the file is bound to the test correctly and other requests and user profiles are bound to other columns in the file properly we have trouble adding 1 column as data source (there are 3 columns and 1000 rows of data in total). Test Studio can identify the column, we can select it from the list when adding data source to dynamic target, bind the target to the column (see attached screenshot) but when we click save, save the entire test and then reopen the profile the binding disappears. Binding is once again set to get data from preceding GET request where target is originally identified (step 0). After a few tries to add the binding and save it Test Studio crashes with "unknown exception" stated as cause.
Can you please provide some help with this issue? I've also attached a fresh log file from Test Runner after trying to bind the column, I am not sure how useful it is.