@ Vectorworks Dev Team
I have seen this both in Vectorworks 2019 and 2020 on my mac.
In 2020 if i open up a fresh blank document and create two devices, connect them, then copy all of it between the readme design layer and the schematic design, the links look like they follow but the lines never update properly ever again. So if I move the signal block, the lines stay static. This happens about 95% of the time. Once in a blue moon it actually copies properly and the lines update properly when the block is moved. I have seen other times were some circuits work but not all.
If I click reroute circuits It looks like the lines are still connected but never update their drawing properly ever again.