I'm experiencing the same problem—it's not just limited to the sidebar; the web version is also affected. The page loads without any error messages, but everything is completely blank. This issue was working fine until it suddenly stopped last week. I was hoping the latest update would resolve it, but unfortunately, it's still not working. I've had to switch to another browser just to use ChatGPT. I've tried all the suggested solutions from others and nothing has worked so far.