Since I don't want to create a github account, some suggestions here to
the (probably Allegro) bug (#419)1) Filing an issue to Allegro, they should know best to find a fix if viable
2) Playing around with the values in the example, e.g. divide through 4, multiply with negative values etc.
3) Looking what values are shown if the cursor is within the window (maybe even create a video for that)
4) Using debug libraries to create log, which can be maybe helpful for issue at Allegro
5) Offering the workaround to switch off the mouse warping, maybe it's viable for Dominator