This often seems to happen. Sometimes it helps to use the tool to push the rivet back out the other way a fraction of a mm.
If you are using a Shimano chain, then using the pins with a snap-off driver can help.
This often seems to happen. Sometimes it helps to use the tool to push the rivet back out the other way a fraction of a mm.
If you are using a Shimano chain, then using the pins with a snap-off driver can help.