Miro Pen Issues on Mac

I’ve been using Miro whiteboard with students for 3 years and love the interactive ability of the toolbar, particularly the pen and text box features. Yesterday for the first time, a student using a Mac had an issue with the pen functionality (could create text boxes, use the select feature, etc.). Every time he selected it by clicking his trackpad, it would only allow him to place a dot on the whiteboard and he said he kept received a paused message. Has anyone heard of issues with the pen feature compatibility on a Mac? As an aside, many of my other students and I use Macs and none of us have experienced this issue. I’m wondering if it’s a setting somewhere on his machine with his trackpad that is preventing  optimal functionality. I welcome any advice or suggestions for troubleshooting. Thanks,