Controls disappearing on a Window when using the IDE under Windows 10. I have just recompiled an application in 2017r2.1 from 2016r3 and all seemed to be fine. However in the new project a lot of my text/textarea controls had lost their 'white' background. I have been going through the project recolouring them from transparent (which showed up as yellow) to white. Also some rectangle controls had gone green from blue. No real issues, just a PITA.
I have now come across a window where the controls are not showing in the IDE, but they are there on the main window at runtime, and even if I click them on the left of the screen, they are not highlighted on the window. If I select all controls (Ctrl-A), some are shown, but all are selected on the left. Some screenshots below to hopefully try and explain.
What it looks like in the IDE
What it looks like at runtime
What it looks like when I select all
Any ideas as to how to fix this without rebuilding the window from scratch.