I tried double pressing the reset button at various times during uploading and without uploading and can get into "Bootloader Mode" with the pulsing red light but whenever I get it to show up on the com port without being an "Unknown Device" I try to upload and receive the "USB Device Not Recognized" message. Now nothing works, even when switching to one of the other unused boards. I was first able to upload to one board and have been working happily with that board (with minor confusion when the ports would keep changing), then suddenly I received a windows notification "USB Device Not Recognized". I have four Trinket M0 microcontrollers and have run into an upload issue on my Arduino IDE 1.8.5 software for all four boards.
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