How many indoor 2k cams can Homebase 3 handle continuous recording?

I have 8 indoor 2k cameras. I noticed earlier this week using Android app v4.6.0, I was able to add all 8 cams to HB3 for continue recording, and the video playback was working fine for 7 camera, but 1 was not showing any video (I removed all the local SD cards).

Today, I upgraded app to v4.6.3. When trying to re-add the camera that wasn’t working right, it said max number of camera for continuous recording exceeded.

Exactly how many continuous recording cams can HB 3 support? Did v4.6.3 cripple HB3?