TechDraw losing View?

[drive_at_11]

I'm hoping someone can enlighten me on why I'm loosing my views in Techdraw. Here's a perfect example where on the model panels I can recompute the Techdraw view and everything checks out but the page has a little square window view with nothing in it.

[chrisb]

The Source property of the view is empty. Can you reproduce how it happens?

[Kunda1]

I'm hoping someone can enlighten me on why I'm loosing my views in Techdraw. Here's a perfect example where on the model panels I can recompute the Techdraw view and everything checks out but the page has a little square window view with nothing in it.

bump

[domad]

Good morning to the whole community!

I downloaded the file and opened it with:
OS: Windows 8 (6.2)
Word Size of OS: 64-bit
Word Size of Freecad: 64-bit
Version: 0.19.24267 (Git)
Build Type: Release
Branch: Master
Hash: b2ca86d8d72b636011a73394bf9bcdedb3b109b7
Python Version: 3.6.8
Qt Version: 5.12.1
Coin Version: 4.0.0a
Occ Version: 7.3.0
Local: Italian / Italy (it_it)
He didn't generate any anomaly, everything worked perfectly.
It would be advisable that "DRIVE_AT_11" indicates (as per regulation) with which version of FC has encountered the problem (when a problem is highlighted and always indicate the version of FC and the system on which it turns: Menu Help -> Information on FreeCAD And copy / paste the result)
Here is the image of uploading the file

[mendy]

Hi opening OP's file does show the square. It appears OP tried to Insert a view without selecting one. Various tries and came up with a popup error and in other instances the error shown below. Did not capture the pop up box but this one shows and closes. OP may have missed.

BTW OS: Ubuntu 20.04.2 LTS (MATE/mate)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.
Build type: Release
Branch: unknown
Hash: e8566f22bbeb0b7204e3c45519d0963e8881100b
Python version: 3.8.5
Qt version: 5.12.8
Coin version: 4.0.0
OCC version: 7.5.1
Locale: English/United States (en_US)