Reproduction steps:

# Open the “ProBuilderTest” project
# Go to Tools → ProBuilder → ProBuilder Window
# In the ProBuilder window select “New Shape”
# In the Scene view in the “Create Shape” section select Cube
# Rotate the Scene view camera by moving the mouse and holding RMB
# Press LMB to start creating Cube

Expected result: start point of the newly created cube is in a location where LMB is pressed
Actual result: start point of the newly created cube is in a location where RMB was pressed

Reproducible with: 5.0.4, 5.0.6 (2022.2.0a11, 2022.2.0b6, 2023.1.0a8)
Not reproducible with: 5.0.4, 5.0.6 (2020.3.39f1, 2021.3.8f1, 2022.1.14f1, 2022.2.0a10)

Reproduced on: Windows 10

Note: the bug is probably contained in the Editor since the package version has no effect on this case