Round 4 will have a match were a 1-2 team will have to face the 2-1 team, yes. First I'll try and match teams that haven't played against each other. If that leaves multiple options, I'll use the group stage seeding and match the highest 2-1 vs the lowest 1-2.
I find out that there is another possibility like this
TyRanT vs SY
FIN vs LoS
VNA vs ChinaA