Hello,
I tested today with latest version in website ( v1.6.0 AI studio + v1.5.0 dev kit )
And, I faced same issue with you.
The reason is probably not matched each version. I'm going to let our team know and back to you soon.
Currently, only latest version is available for website, regarding old version download, I can't upload since it over 50MB.
Please wait for this issue a little bit.
Thank you for your patience.
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