Hi Adrian,
i am facing the exact issue which you posted here. I too have opened a SAP OSS ticket after applying all necessary SAP notes and not positive outcome. What would interest me is to see your SAPUI5 version with SP08 - if you are still on SP08. Could you post me a screen shot of your SAPUI5 version via <server>:<port>/sap/public/bc/ui5_ui5/index.html?
Regards,
Michael