Drawing doesn't fits in when screen is rotated from potrait mode to landscape mode

Expected behavior

Drawn sketch was supposed to be 100 percentage visble when rotating the screen to landscape mode.

Actual behavior

Some portion of sketch is not visible or can be swipe to continue the sketch .

How to reproduce

Download the app from F-droid

Launch the app

Draw a full screen rough drawing

Rotate the screen

• Browser: v3.1.6
• Operating system:
  Android 8.1.0 Model : Pixel XL

Recording Of The Bug