We decided to make one topic for Madeira mesh issues to avoid a lot of overlapping topics. Start by reading with the developer here explains, it will solve almost all of the issues.
Please do NOT discuss any other issues but mesh conflicts here!
Ok,
I can confirm the issue.
I don't know what happens here, but what the Installer Version 1.05 is installing for Microsoft FSX (expect FSX:SE, can't check it), has nothing to do with what he should install.
The Installer 1.05 should only add content to be able to install P3D V4, MS FSX, FSX:SE and P3D V3 was not changed. Here the installer should do he same as 1.04.
I also check P3D V3, here it looks for me as expected.
I will address this issue tomorrow morning