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« on: February 18, 2020, 03:09:31 PM »
You should definitely be selecting RobotZero for the RobotZero processor, otherwise, your programs will not work as expected or even at all.
The TinyScreen+, TinyZero, WirelingZero, and RobotZero all share the same processor (the SAMD21) so they all show up as "TinyScreen+" in the Arduino IDE due to the way the board package is written. This is a little confusing, but it means that your computer is correctly recognizing your RobotZero, so that's good!
It's strange that you're getting a failure even though the programs are uploading. I'm using Arduino IDE version 1.8.8 and I don't have that problem, so maybe there are some bugs in the most recent version? It's a hassle to undownload the IDE and redownload a different version since you have to reinstall any boards packages, but that could help if you continue getting these mixed messages.
Before trying that, I would recommend turning your computer off and back on, and using bootloader on the RobotZero to get it out of this behavior.
I hope that helps!