to use which jump ring.... pls check with novelties team... they have the experience
what's the thickness of the jump ring now?
or could you check with other engineer, or colleague?
for this kind of problem.... they should be ablve to give u advice
surely need to use thicker jump ring... but the chain link may not be able to pass through it
otherwise we should add one more thickness jump ring between motif and the jump ring with chain
as a engineer.... you cannot just let me know the problem... you should also give suggestion on how to improve this kinda of quality...
u understand?