Could you please let us know the exact version of Lightroom CC you are using now? Go to Lightroom CC > help menu > system info.
Also, are you looking to access the synced images to different devices?
here is my info
Lightroom CC version: 1.2 (Feb 1 2018)
Operating system: Mac OS 10
OS Version: 10.13
Application architecture: x64
Logical processor count: 4
Processor speed: 2.9 GHz
Built-in memory: 32,768.0 MB
Real memory available to Lightroom CC: 32,768.0 MB
Real memory used by Lightroom CC: 2,242.2 MB (6.8%)
Virtual memory used by Lightroom CC: 5,229.2 MB
Memory cache size: 1,371.4 MB
Internal Camera Raw revision: 894
Maximum thread count used by Camera Raw: 3
Camera Raw SIMD optimization: SSE2,AVX
Camera Raw virtual memory: 633MB / 16383MB (3%)
Camera Raw real memory: 634MB / 32768MB (1%)
Displays: 1) 2560x1440
I don’t actually need it to be used on any devices other than my own desktop.
Also the files I added were all DNG files already. Not sure if that matters.