Thank you for your prompt response. I tried to clear the checkbox in multiple ways, without success.
However, this approach also failed. The checkbox remains unchanged in the GUI, even after restarting Tunnelblick.
I can confirm that the configuration appears to update successfully when checked using defaults read, but the changes have no effect elsewhere.
I am currently using Tunnelblick 6.0beta09 (build 6130).
Am I missing something here?
Thank you!