Based upon the living room test the only camera setting with which the flash synchronizes properly is the full manual setting. The flash is still out of sync in the aperture and shutter speed priority settings. I would rather shoot in the manual setting so this is not a big issue for me - although I think it is an odd outcome when I am using supposedly compatible equipment, and I would like everything to work.
Ikelite recommended that I set the camera to aperture priority because the electronics were not designed to work in the full auto setting - but, according to Ikelite, normally will work in the auto setting anyway. Otherwise, the company suggested there may be an electronics problem in the housing that needs to be repaired.
When I did the living room test I used the full, 1/4 and 1/8 flash settings. Due to my own oversight I did not test the TTL flash setting.