Did the miracle of Draught of Fish happen before Jesus' resurrection as in Luke Chapter 5 or after the resurrection as in John Chapter 21?

The miracle of the draught of fish occurred when Jesus told the disciples to cast out their nets, and they then were overwhelmed by the abundance of fish that were caught. In Luke, this occurs before the crucifixion, but in John, it occurs as the last appearance of the risen Jesus.
In John's Gospel, much of the account of the resurrection appearances of Jesus can be seen to have been sourced from Luke's Gospel and embellished, including this pericope. If the author of John's Gospel was so clearly dependent on Luke's Gospel for this narrative, then we can at least say that the episode did not occur after the resurrection.

However, we also know that the author of Luke's Gospel was dependent on Mark's Gospel for his information on the life of Jesus. Whenever Luke describes events and sayings described by Mark, the Greek text is almost identical. Moreover, a "Missing Block" of text from Mark, but not found in Luke, results in the curious conjunction in Luke 9:18 "And it came to passas he was alone praying, his disciples were with him: and he asked them ..." These clauses are found in Mark at the start and end of the Missing Block - indisputable evidence that Luke copied Mark. Since Mark knew nothing of the miracle of the draught of fish, we can reasonably say that this did not really happen.