What should I do if the software popup becomes unresponsive and cannot be closed after the 2.0 dongle is removed for some time?

Troubleshooting
1

Phenomenon:

As shown, when using the 2.0 software, if the USB dongle is removed for approximately 3 minutes, a license warning popup appears and cannot be closed; functionality is restored when the dongle is reinserted.
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Solution:

Reinsert the dongle and click “Confirm,” or close the software process in Task Manager.

Explanation:

This is a design choice by the dongle manufacturer to prevent unexpected software shutdowns due to USB instability or accidental removal during production.