DEFAULTS_REJECTED
What happened
The default value of every setting is tried against the constraints when the file loads. The defaults you wrote break one of them, so the strategy could not run even once as written.
What to do
Change a default, or the constraint, so that the defaults pass.
Example
text
strategy.py, line 16: The default settings do not pass: constraint 1 is not met: fast=20, slow=10. Change a default or the constraint. [DEFAULTS_REJECTED]The wording of the message depends on your file, and the code does not. An error stops the file from loading.