If this template helps then use it. If not then just delete and start from scratch.
OS (e.g. Win10): OS 10.14.5
PsychoPy version (e.g. 1.84.x): 2020.
Standard Standalone? (y/n) y
What are you trying to achieve?: present next stimulus depending on the offset of the previous stimulus using variable name.status == FINISHED
What specifically went wrong when you tried that?: I have been using this method for a while. However, after updating to the newest PsychoPy version. I saw this error message “Variable name $FINISHED is in use (by PsychoPy module)”, as attached below. Try another name". I am not sure what the source of this error is. While I was able to run the experiment still, the timing of the stimulus was not quite right.