No idea friend. I don’t have any experience with a ceramic chip antennas. You could try getting a better antenna chip and swapping it out?
Can you measure the length of that blue chip in millimeters, and let me know what it is?
I do know your experience with poor signal is also reported by other KZ cable owners. So it does appear to be some sort of design issue with the new cable (ie maybe with the antenna, ground plane, or perhaps shielding).
I know I am staying far away from the new KZ Bluetooth cable. Perhaps they will revise it and make improvements at a later date. Until then, the TRN cable is the best one to buy.