Have you considered trying different versions of usb_modeswitch or even experimenting with alternative Buckshot Roulette modeswitching tools to see if they yield different results?

An alternative method to address this issue is by modifying the udev rule conditions to explicitly include both SUBSYSTEM and ACTION without changing the original conditions. crossover grid SUBSYSTEM=="usb", ACTION=="add", GOTO="modeswitch_rules_continue" GOTO="mod...