I am using a Mac running OS X 10.12.6 and KiCad 5.0.2-5. I have a problem, as follows. I have a very large circuit with about 930 parts. Most of the parts are 11 instances of one circuit. I have the schematics nearly completed so I thought that I would try a layout.
I annotated the schematic, ran the debugger on it (there were 7 errors, some due to not-yet-connected signal lines; to be corrected) generated a netlist and opened Pcbnew. That is when the problem showed up.
In Pcbnew I had an identical collection of parts for each instance of the one circuit, and some other collections, one for each section of the schematic (one collection per page). The full ratsnest also appeared. So far so good.
When I tried to select one component to start to lay out the circuit, all the components except the one selected disappeared. The ratsnest still showed, but there were no components showing. I if I selected an area of the ratsnest, the components in that area would show, but only until I tried to select one.
I cannot use KiCad this way I have used KiCad for years on smaller circuits but never on a hierarchical one and never one with this many parts.
Have I run into a bug? Has anyone seen this before? If so, how do I fix it?
This is a disaster for me as I have to get the circuit laid out very quickly.