Hi @pwi23270,
thanks for sharing your experience.
I also tested the PX4 Matlab toolbox during my first year of PhD (late 2020, beginning of 2021). I started with the Pixhawk 2.4.8 and rapidly switched to a better one (Pixhawk cube black, at that time).
The old Pixhawk 2.4.8 had a lot of problems, making the work very hard for no reason.
I would suggest you to switch to the Holybro Pixhawk 6c, instead of trying the other toolbox.
Also, what do you want to do with the toolbox? because the PX4 toolbox gives you more options to work with PX4.