Thank you very much for your detailed and informative explanation
. It worked out well after I followed your solution. You also gave me a way to report the issue so that this kind of negelction could be avoided in the future. Thank you again. Now I also know the background context of the posted videos of jupyter lab from your expeienced usage of this coding environment, so I would be prepared to bump into similar problems like this. Really helpful and I’m very thankful for your keen explanation. Thank you.