when using (a T48) for the first time, i got a "please reflash firmware" error on startup and every action i tried. This could not be fixed on the linux machine (see quirk below). Had to plug it in a windows machine to reflash the current firmware one time, since then it works. [might work now, since udev works, cannot test that]
the firmware flashing (on a T48) did not work at all, since i always got a reset error. [might work now, since udev works, cannot test that]
i had to install the clip/chip before usb powering the (T48) programmer, becaue i get a pincheck error if i don't do it in that order
when programming (with the T48) with the "erase before" option enabled, only erased the IC and then errored out. A restart of the Software/container was required afterwards. This can be avoided by using the erase function and disabling the "erase before" option for programming [might work now, since udev works, cannot test that]
had some other quirks, all were fixed by stopping the software, replugging the (T48) programmer and restarting the software.