After the .NET Core bump to version 3.0 in the 2019.1011.0 release,
reports popped up of the game not starting any more on some computers
using Intel graphics cards (HD 3000 in particular).
After investigation the auto-generated application manifest changed in
.NET Core 3.0. In particular this seems to be a root cause for the
failed start-ups on Intel cards, due to a Windows version compatibility
section appearing. The section in turn affects some WinAPI calls like
GetVersionEx, which will return major version 10 instead of 6 if
compatibility with Windows 10 is declared. This combined with a broken
check in the Intel OpenGL driver caused the crashes.
To resolve this without having to patch binaries, add an explicit
application manifest to the desktop project with the compatibility
section removed.
The difference is caused by the reworked calculateLength() of SliderPath. This comes as a result of the increased accuracy of path lengthenings due to calculating the final position relative to the second-to-last point, rather than relative to the last point.