If you are using a non-Default profile path there will be no Intro animation played behind the Main Menu when it initially loads.
This does rectify itself if you enter any sub-system that brings up a load screen and return to the Main Menu.
The profile folder and the profile itself appear to be created correctly. {F27809}
o Remove any Steam command-line parameters
o Reset Arma 3 Launcher settings to default
o Set Parameters->Advanced->Profile Path to a non-Default path
o Launch ArmA 3
I have included a RPT file for both the default paths and with a custom path in case these are useful.
I think, we figured out, what's the cause for the issue is.
Please check, if you use any spaces in your custom profile path (f.e. "d:/new path").
The issue seems not appear if you use connected path names (f.e. "d:/newpath").
There might be a fix in the dev branch the next days.
Sorry for the delay, but was tied up with wrok related BS the last few days. There was indeed a space in the profile path: 'D:\System\Users\DJPorterNZ\Documents\Arma 3\Profiles\1.55'.
Tested with the current build (1.55.134018) and it appears to have fixed the issue. Thanks for the quick response and fix.