'USB port is that the 3.2 standard is newer than the Tascam and hence may not be fully compatible."
Highly unlikely.


You can press Alt+Ctl+Del, open task manager> Performance and just see if graph "spikes" when glitch happens.

I have seen strange behavior when interface older driver is being updated by a newer driver. The solution I found was to remove the driver all together and install fresh, going with the newest. Sometimes a "factory reset" of the interface (if there is one) solves issues.

If Marty is close by, you can try bribing him with a beer or a cake and ask him to bring his interface, that way you will have a better idea if it's the computer or interface issue.