Timing chain advice, split roller or solid

I would never nohow no way use a split roller chain. I'm really surprised that JP chain was like that. I have one on the current slant 6 I am running, one for my next build going together and one on a member's engine I have built for him. All three of those are solid roller chains from Rollmaster/JP. I'm like @Bewy, I think maybe that was an entry level quality chain if it has split rollers.
I'll Ck out Rollmaster, see if they specific chain type