the "normal" or "expected" behavior is still not a good way of handling the program.

Furthermore I would challenge you on what you are saying.

My system setup is

Lenovo Laptop with 4K screen (#1) , Thunderbold docking station with 2 4k lenovo thinkvision monitors (2 and 3) and HDMI from laptop to Sony 4K 65" TV, (4)

All four screens are set to extend to this screen so in windows i show 4 monitors

all four monitors are set to 3820x2160

if i open qb on laptop screen i can see report details, if i move the whole app to the tv screen i can see report details, but if i move it to either monitor 2 or 3 i cannot. So It is not that report must be openned on main screen. Honesty I am a little frustrated as I just replace screen 2 and 3 think the issue was because main display was 4 K and screen 2 and 3 were not, their max resolution was  2560x1440, so i just wasted a grand on some really nice monitors that did not solve my issue. 

Intuit QuickBooks you need to fix this and you also need to fix your dependency  on IE. I hate having an app on my PC that Microsoft no longer updates for security.