Hello @Lebowski , are you able to say if the problem still occurs with ArcGIS Pro 3.7.1 - available since yesterday ?
Yes, I just updated to 3.7.1 this morning and received the same error. @ChrisUnderwood
@Lebowski Was this working for you in an earlier release? If so, do you remember which version?
@Rafael_Bombacini @ChrisUnderwood
I have another machine running version 3.6.2, the Copy Parallel tool worked correctly.