Hey,
This is how my HTML5Engine.ini file looks from the following file path: D:\Epic Games\4.8\Engine\Config\HTML5
[Audio]
AudioDeviceModuleName=HTML5Audio
[OnlineSubsystemMcp]
benabled=false
[SystemSettings]
r.setres=800x600
; These following settings have moved to the inis and can be set from the editor
; These old value are left as reference until all old code paths are removed
;[BuildSettings]
;HeapSize=1024
;[HTML5DevicesWindows]
; (64 bit)="C:/Program Files//firefox.exe"
; (32 bit)="C:/Program Files (x86)//firefox.exe"
;Firefox (32 bit)="C:/Program Files (x86)/Mozilla Firefox/firefox.exe"
;Firefox Aurora (32 bit)="C:/Program Files (x86)/Aurora/firefox.exe"
;Chrome="C:/Program Files (x86)//Chrome/Application/chrome.exe"
;all browsers on mac are 64 bit, 64 bit browsers can allocate more than 512MB of memory to around 1.5 GB.
;[HTML5DevicesMac]
;Safari="/Applications/Safari.app/Contents/MacOS/Safari"
;Firefox="/Applications/Firefox.app/Contents/MacOS/firefox-bin"
;Firefox (Aurora)="/Applications/FirefoxAurora.app/Contents/MacOS/firefox-bin"
;[HTML5DevicesLinux]
;Firefox="/usr/bin/firefox"
;[HTML5SDKPaths]
;Mac="/path/to/emscripten/sdk"
Could you please try this type of HTML5Engine.ini and see whether or not that makes a difference in your packaging process?
If it fails, please provide me the as a .txt file attached to your next reply. Please also provide the exact steps that you take to package your project as there are a couple of ways you can package your project.
Looking forward to hearing back from you, thanks! 