Bad terribly annoying no good three way coolant valves

I use my Prius for gig work so it gets a lot of miles. Recently I got the p1121 code and ignored it because I read on various forums it wasn’t important and most likely a stuck valve. A few weeks later it turned into p1122 and a red triangle. Luckily I just set out and was only a few miles from home. I drove back slow, mostly in EV and downhill.
Turned out the three way valve internally failed at the rotary seal and leaked all of my coolant out. Many a hot and sweaty hour later I replaced it with a 4 season third party valve and it’s working again but I can occasionally hear the sound of it hunting from
The sensor being out of sync or whatever you want to call it. Is it a bad valve or just not very good? If it is a failing part, would it fail catastrophically like last time or can I just keep driving it with the code if it pops up again? I need it for work.

 

This was a four seasons brand part from rock auto. I don’t think I’ve heard or rock auto getting knock off parts.