How to reproduce:
1. Create a new Application VCL
2. Drop a TPageControl
3. Add a Page
5. Drop SRV into the tabsheet
6. Set Align to alClient of the SRV
7. Run and get the error
How i did come to that, is im getting drawing issue in my software where i dock the SRV in real time to a TPageControl. the 2 Scrollbar are redrawn in black and i have to pass my mouse over to get it refreshed. Initially i use TAdvPageControl so i though i could have been a parent redraw error, but i cant get my test to run because of the range check error.
Screen shot of the issue with painting:

Thanks for your time