See Issue 2361 – Layout problems of by-default hidden columns on high-DPI displays.

@zlbb: Thanks. I've sent you an email.

I've found out that the Reset Layout command does not reset width on initially hidden columns (like Type column). I've fixed that:
Issue 2347 – Columns > Reset layout command does not reset width of by-default hidden columns

@martin, I had:

Adding Type from interface after deletion worked.

@zlbb: If you can work with Windows registry, please backup and try to delete this value:

Please send me the original value.

@martin, tried already. The screenshot is after reset.
I got it several times with some previous versions of WinSCP, but don't remember the exact ones :(
It's repeating problem for me.

Please try the Reset layout command.

@martin, got it. Thank you.

But still have some strange behavior. https://i.imgur.com/GzTxplS.png
Type column is enabled but not shown.

But when I just reinstalled WinSCP, Type was visible. I couldn't notice when exactly it disappeared.

@zlbb: See https://winscp.net/eng/docs/ui_file_panel#selecting_columns

Revive from the dead :)))

I use version 6.3.6 and remember I had "Type" column just after installing WinSCP. But some time passed and it's gone. I didn't change any settings.

I also the one who needs type-sorting feature because sometimes I just need to make a quick glance to find only files of certain types on remote panel.

1. You can sort files by extension
   
2. You can select files by extension
   
3. You can skip files by extension from upload/download
   

I've been looking for a remote file Type column as well. It would come in very handy sometimes. For instance, if I compile Java code on my local Windows machine and upload to a Linux server, I want to upload only .class files, not .java files. This is easily done, because I can order by file Type locally. But if I upload a few directories at once, I might want to delete the remote .java source files because they never get updated when I upload only .class files. If I could sort the remote files by Type, I could easily delete the files I don't want, or easily download only the files I want. Thanks.

Type column is absent by purpose. IMHO this has no meaning for remote files. But as several people demand this for some reason, I consider adding it. BTW, why do you need it?

...in Norton commander style view

Forgot to mention, this bug is found in:
v3.7.4 (Build 271)

Missing Type column in remote panel

1. Right click in remote panel
   
2. Choose "Show Columns"
   

Expected: Type should be in the submenu as it is for the local panel
Problem: Type is missing from submenu.