"Cannot read properties of undefined (reading 'size')"

Hi I am uploading a wearable and I got this error message “Cannot read properties of undefined (reading ‘size’)” could anyone provide some help with this error message?
I had already uploaded these same files and viewed them in world before so I don’t know what this new error means. Thank you.

image

The same thing :neutral_face:
When adding representation

Update: Clear your browser cache, disconnect your wallet and start again. I did it this way and it works fine now.

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yeah something of these helped
thank you @rob_dols

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