@Svet
First, I've read through this message board, and I have to say thank you for taking the time to help everyone! I really appreciate all of the assistance and advice you've taken the time to provide!
Second, like many of the above posts, I too have attempted to install MSI Center and encountered the blank screen on my K360 AIO. I'm hoping that the recommendations you offered others will work for me, but there are some reasons it might not:
a) Motherboard is Gigabyte Aorus Ultra
b) CoreLiquid Software was installed on my machine at the time of installing and attempting to 'live update' MSI Center
c) I performed the advanced live update, which told me that I needed to installed the LED FW package... and then the blank screen started
d) Multiple uninstalls (both with and without the official MSI uninstaller app) and reinstalls of the MSI Center app (either from the MS Store or the MSI Website) have been performed with no improvement of the K360 screen. Each uninstall/reinstall cycle was accompanied by a power cycle.
e) After uninstalling both MSI Center and CoreLiquid software, I retried installing MSI Center again from their website. I attempted the advanced live update again, but this time ran into a problem where the LED FW package would reach 99% completion on the install, but then move no further. The program had not hung up on this step when I performed the first install.
Would it be helpful for me to post the debug file?