Hi DK,
As I understand, your query is like you have the RX and TX cables of more than one TRX swapped going to the combiner unit(assuming that the Transceiver module is not a Dual TRX).
If this is your case, then there might be some issue on the RX Diversity. This could result to bad uplink quality on that cell that may lead to more drop call.
You can still make calls on the cell.
rgrds.