Cooking - wok with foam bubbles?

Hi all. I know this is not a cooking forum but the major cooking communities don't allow attachments so I am posting here in case there are an kitchen experts that could provide guidance.

I bought this new Kmart wok and while frying onions I saw a lot of bubbles/foam forming up. It's a hard anodised wok (not sure what that means!) with non stick coating. I had this one before and didn't see anything like this.

So far to rule out ingredients going off, I have tried a different oil and onions but it still happens. Any thoughts on this?

Link : https://www.kmart.com.au/product/32cm-hard-anodised-wok-42116103/?srsltid=AfmBOoq57Ps2DhKWNX0fPxeoOjgblTSCsuvbdL_FUw-qAmNaDYd3JtkB

Hi all. I know this is not a cooking forum but the major cooking communities don't allow attachments so I am posting here in case there are an kitchen experts that could provide guidance.

I bought this new Kmart wok and while frying onions I saw a lot of bubbles/foam forming up. It's a hard anodised wok (not sure what that means!) with non stick coating. I had this one before and didn't see anything like this.

So far to rule out ingredients going off, I have tried a different oil and onions but it still happens. Any thoughts on this?

Link : https://www.kmart.com.au/product/32cm-hard-anodised-wok-42116103/?srsltid=AfmBOoq57Ps2DhKWNX0fPxeoOjgblTSCsuvbdL_FUw-qAmNaDYd3JtkB