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[Regarding macOS Tahoe](Updated September 18, 2025)

We cannot guarantee the compatibility of the current releases of Live2D Cubism Editor and Cubism SDK with macOS Tahoe.
We advise against upgrading your macOS at this time as it may cause Live2D products not to function correctly.

Upgrading macOS can also cause you to lose your Cubism Editor license file.
Please make sure to deactivate your Cubism Editor license before upgrading the macOS.

For more details:
https://help.live2d.com/en/other/other_09/
For inquiries regarding issues with license purchases or license activation errors, please contact us through the email form.

License verification error because of system time

SherrySherry
in Help
Hi! I changed my system time for a game and changed it back, and since then every time I open Live2D I get this error:
"Failed to verify a valid license because the system time was not set correctly. (1 ,-40)"

I contacted support, but while I received an email confirming the ticket, I have yet to receive any help or fix. I have a lot of ongoing commissions and this issue is really affecting my work, so is there anything I could try to do to fix this? Even just knowing how long it may take to receive an answer on my ticket would help.
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