Connecting Wago PLC with relays - continuity problem on Krone connectors

I need advice from experienced electricians/automatics.

I have installed a WAGO PLC in my house for a smart installation.
I have stranded all the twisted wires from the bell buttons on Krone connectors.
According to the specifications on Krone, the conductor diameter can be split: 0.35-0.9mm.
To connect the OUT controller to the Wago relays, I used H05V-K/ LgY 0.35 wire (max rated stranded wire diameter 0.21mm; outer diameter 2.4mm with 0.6mm insulation thickness).
It's fun to put together and I found that I might also connect the inputs to the controller with it .... but they have to come from Krone.
I did a test and plugged this cable into the Krone and checked continuity and resistance with a meter and everything looked ok.
I took the connection and unfortunately after connecting 20 pieces there was no continuity in 4 of them ... so the Krone did not cut the insulation as I would have expected. This is a 25% chance that something will be wrong ... makes me wonder how good it is on the other pins.
I'm in a dilemma whether to keep pulling it or possibly give up on this wire and with the Krone pulling everything with wires that I extract from the stranded wire?

Any experience, advice?

I don't know if I can help you, I had a similar problem with jump-locks, I was connecting the wires with a wire, the connection point of the terminal itself I simply soldered with solder before pushing the wire in. True, the insulation won't stick in the terminal, but the connection electrically, will be more secure.
Good luck Christopher.

Thanks for the hint - I've thought about it but it's a lot of work.
I don't know if I'm going to rip the twisted pair and use strands which shouldn't be a problem though.

Unless anyone has any other ideas.

When you have prepared all the cables, if possible, you will peel off the insulation of the ends in bulk, solder and tin them in bulk, and stick them in the connectors in bulk, if this does not cause a problem as to which is which you may need to label in bulk, e.g. with stickers from the stationery shop.
The hassle may well be worth it.
Good luck.