Storagemap form creation lets you pick the source storage correctly, however once you save(click on create) the source storage field remains with "select storage" instead of showing the source storage we selected say "eco-iscsi-ds3". The yaml view does show the source storage field populated correctly.  

MTV 2.9.3
OCP 4.19.9

Always 

1. Create a new storage map using form view, picture 1Create_storage_map.png, notice I chose a source storage, filled in all the needed details and clicked "create"

2. Notice the form view doesn't populate\expose the source storage name correctly, from this view it suggest we didn't even select a source storage, picture 2form_view_shows_sourcestorage_as_unpopulated.png

3. If however you revert to yaml view, we can indeed see the selected source storage correctly line 45 shows the source storage ID datastore-79826) which if we check the status at the ends is equivalent to "eco-iscsi-ds3" which was selected originally. Picture 3yaml_format_shows_sourcestorage_correctly.png

The yaml format is correct, the form view fails to populate/show the correct source storage field we chose.

I'd expect the source storage field to show "eco-iscsi-ds3" as is indeed shown correctly under the yaml format.

Might be an issue with editing an existing map as well not sure if its' caused due to same reason or not. Also I noticed issues with this before, as this is a new MTV version 2.9.3 and it's for creation rather than editing a preexisting map I opted to report it as a new bug.