ZWave dropping out even with plenty of routers

I’ve only recently had issues with my ZWave network. There are about 8x zooz scene controllers (Zen32) around the house that all work as expected. I then installed a single ZWave shade from smartwings. It worked great so I installed 18 more.

Only one had issue pairing and it drops out every once and a while. I checked the settings on the device and it’s trying for a direct connection on the basement while it’s on the second floor. There are about 2 scene controllers in between that could relay the signal. Why is it not hopping instead? I have tried to rebuilding the network (using ZwaveJs) and it didn’t help.

I’m using the Zooz ZSE10 S2 with FW 7.18.3

I did check many of the ZWave devices and most are direct but not all.

I’m really hoping I don’t need to re-pair devices. Any guidance or suggestions would be greatly appreciated.

I read somewhere that the controller has its own proprietary algorithm that it uses to calculate routes so it’s kind of hard to tell why a device uses a certain route.

Fortunately if you use Z-Wave JS UI you can test the signal quality between nodes
and manually setup static routes if you need to.