Two OpenAI bugs: First, I can't report bugs, second it can't read a site

I found two OpenAI bugs (the first prevents me to report the second one):

(I don’t use CloudFlare, bad robots.txt or whatever. The bug is on the ChatGPT side.)

To a surprise, only GPT-5 in ChatGPT can’t read this page. After I hit the limit of GPT-5 and it switched to another model, the page became readable.

I’ve subscribed to ChatGPT Plus trial. Now, it works with GPT-5.

I am confused by the pattern when retrieval of my pages works and when not.

The bug again hits me, this time with GPT-5 Plus: