Upload stops at 999mb

Me too. Same issue. New MyCloud 4TB. Using the desktop WD MY CLOUD app.
I want to use this app. Not interested in some other way, this should just work.
Using an iMac with latest os and no its NOT Apple’s issue, its an WD issue, so don’t tell me to contact Apple or complain to Apple.

I remember this issue with other products way way back in the 1990’s when using windows XP. Is that were we are at with WD technology? Stuck at 999 MB limitations? Really?
And since WD nor their tech support has resolved this 999MB limitation, or even responded in the forums, I guess that is where we are. Back in the 1990’s.