Tamron 18-200mm F/3.5-6.3 Di III VC Incompatible with Canon EOS M5

From Tamron:

Dear users and potential purchasers of Tamron interchangeable lenses,

Thank you for using Tamron products.

We have learned that, when attaching the Tamron 18-200mm F/3.5-6.3 Di III VC (Model B011) to the Canon EOS M5, which will soon go on sale outside Japan, the camera power is turned off or is not turned on, making it impossible to use the camera.

We sincerely apologize to all users and potential purchasers for any inconvenience the issue may cause.

An investigation is currently underway in detail about the connections between the Canon EOS M5 and our lens, and as soon as we know more we will post a notice on the Tamron website.