When I use a Windows 10 appearance in my application and invoke the help (via F1 or through a help button) by hcontext, the help file is presented normally but the left side menu disappears as soon as I move the mouse over it zone or try to switch between the index and search tabs. This does not happen if I use a classic "windows" appearance, or if I invoke the help without using hcontext. The images show an example of what happens.
Has anyone observed this behavior? Is there a solution for this behavior (apart from using more conventional appearances in Dephi)?