Adding clothes, changing them etc

I’m trying to re-download ShotPro onto my new iPhone 11 Pro Max running iOS 13.3.1 (by clicking the cloud download icon) and the download goes to about 1/3 complete and then stalls/restarts without an error message. I have over 100gb storage space available, ive tried resetting to factory settings, turning wifi on and off etc.  I purchased the app years ago, are my old settings conflicting with the latest version?

These walls that I created via the over head 2D view, do not appear in the objects side panel that shows the objects on your scene, therefore I cannot delete there. I tried the following steps: * Undo button not working * I tried tapping on the wall * I tried long pressing on the wall * I tried the mini tool bar that appears above when in 2d What am I doing wrong? Undo button not working, I created this project some time mid last year, I am just now getting back to it. I think memory cache, that undo button relies on - did not keep the data which recalls the sequence of wall placement stored when undo button pressed. I think this is the reason undo button is not working for me. However if undo was working, I do not want to delete every wall, until I get to the wall I want to delete. I would like to delete one specific wall - should be a delete button. I am surprised it’s not a long press activation.