Viewing an old Flash project in Adobe Animation in blocks, not in full. Can't edit. What to do?

Question

Adobe Flash

I want to edit an old project made in flash. I open the source in Adobe Animation and all the graphics are displayed on the screen not completely, but in blocks.
It feels like it's turned on to decide the simplest view to save computer resources.
The files in the project are not corrupted, because when rendering, Animation displays all the graphics in full.
I tried to change the display type, but there is a full alias. I climbed into the settings - I did not find the display control there.
In order not to be unfounded, I bring screenshots:

and


Please tell me what to do.