Dec-14-2020, 05:23 PM
show minimal reproducible example. It looks like
cur
object` has been garbage collected when you try to use it, i.e. it was destroyed.
If you can't explain it to a six year old, you don't understand it yourself, Albert Einstein
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs