+set modDevMode 1 as launch argument not working

[Bozza2067]

In Client Addon Packages: the future it states that in order to load the new type of client addon packages, FiveM must be launched in canary builds. It states which launch arguments to apply to do so, but no matter what I try, it doesn’t work. There is meant to be a ‘huge watermark claiming that FiveM is in mod developer mode’ but it never shows up.

GTA V version? 1.0.1737.0
Up to date? Yes
Legit or Pirate copy? Legitimate
Steam/CD/Social Club? Steam
Windows version? Windows 10 Pro | Version 1903 | Build 18362.239
Did you try to delete caches.xml and try again? Yes
Error screenshot (if any)

There is meant to be in a watermark like in this image: https://forum.cfx.re/uploads/default/optimized/4X/5/4/0/540b83b8f1851fb9e2528f25fc9f3acd7940c6ea_2_690x388.jpeg

System specifications
Intel Core i5-4460
MSI H81M-E34
ASUS ROG Radeon R7 370
16GB DDR3 RAM

What did you do to get this issue?
Added +set modDevMode 1 to the ‘target’ value in a shortcut’s properties.
Added +set modDevMode 1 as a launch argument in a non-Steam game shortcut.
Launched FiveM.exe with argument +set modDevMode 1 through cmd.

What server did you get this issue on? N/A

CitizenFX.log
CitizenFX.log (42.7 KB)
.dmp files/report IDs N/A

If an issue with starting:

GTA V folder screenshot

GTA V/update/x64/dlcpacks screenshot

Filepath to FiveM folder
E:\Apps_Games\FiveM\FiveM.app

FiveM client folder screenshot

Did you try to disable/uninstall your Anti-virus? Yes

I’d like to add that at the moment I’m only trying to get the game to launch in developer mode, without any client packages installed.

None of the following methods have worked.

[system]

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[natrium]

Make sure you’re actually running UpdateChannel=canary in your CitizenFX.ini.

[Bozza2067]

Yeah I feel kind of silly now. Thanks!