Hi @anon89245342 , I feel your pain but I’m sure you can crack this.
The issue is that during the CSV import, it is converting your Dependencies fields into a simple text field as is clear from your last screenshot of the task details.
First of all, make sure you setup your project with all the custom fields you require BEFORE you import your CSV.
Then when you go to Import your CSV, the trick is to make sure you select ‘Make changes’ during the CSV import process (instead of the blue button ‘Go to project’). This will allow you to edit the fields that are being mapped to the fields in your project.
Find your field with your dependencies and from the field header’s dropdown menu, scroll all the way down and select ‘Dependents’. NOTE: the values in your CSV for dependents needs to be EXACLTY the same as the task’s name, otherwise the choice will be greyed out; if it is, hover your mouse over the greyed out ‘Dependents’ and a pop-up label should tell you what is invalid in your CSV file so you can go back to check it 
If you have any other issues, you can try experimenting with the two buttons on the far right ‘X columns ignored’ and ‘UTF-8’ where you can change the encoding.
Once you have checked that all your other fields all mapped correctly (single-select fields or multi-sleect fields, etc) then hit the blue button Continue to project’. 
Let me know how you do!