It would be most useful for you to upload the entire sketch (the .fzz file) which would let us access the actual sketch and see what the problems are. Single view screen shots are rarely useful.
Normally placement of parts does not change from view to view i.e. changing something in schematic will not change placement of part in breadboard, only connections at the rats nest level not placement of the parts. As noted changing solid lines in one view to something that conflicts with a solid connection in another view will cause problems though.
Click on any pin (in any view) and everything that connects to that net will be highlighted in yellow (and if you have pins that should be connected but aren’t highlighted then there is a connection problem in this view).
Yes, because component pins are part of a net (which is where rats nest lines come in) and if you reverse them in another view they will reflect (and cause misconnections due to shorted nets and potentially corrupt the database) in the other two views. That’s why the recommendation is to do one view completely then follow the rats nest lines when making connections in the other views.
This part is abnormal. In the breadboard view displayed above the parts are not placed correctly (they won’t connect like that on a real perf board.) The first step in breadboard should be to position the components in the correct physical position and preferably lock them so they don’t move then make the connections according to the rats nest lines (rotating components if required if the rats nest lines show they alignment is backwards.) Note perf board as you have selected is one connection per hole so the wires on the bottom IC connect to nothing (the perf board itself will accept a connection, but it connects to nothing in schematic as it has no representation there.) you may want strip board instead. There are no rats nest lines showing indicating either they are suppressed in breadboard view (which is not the default) or schematic isn’t done. Without the full sketch I can’t say much else about this.
Peter