https://support.microsoft.com/en-au/topic/the-roletailored-client-rtc-is-disconnected-when-you-run-c-al-code-that-contains-recordref-variables-in-microsoft-dynamics-nav-2009-990fc968-ed78-cd9f-3739-d37184fc028e
The RoleTailored client (RTC) is disconnected when you run C/AL code that contains RecordRef...
Fixes a problem in which the RoleTailored client (RTC) is disconnected when you run C/AL code that contains RecordRef variables in Microsoft Dynamics NAV 2009.