McIntosh MCT cable issue

Hi everyone, ever since I’ve had my MCT500 transport connected to my MA8950 DA2 module the MCT connection has been finicky at best. Initially it would work then stop working. Cable was replaced but ultimately when I inserted the cable a little less fully into the DAC it worked consistently. That lasted a few months but now it’s back to flickering connectivity. 
 

i think this means the issues is the connection in my DA2 on the amp rather than the cd player. It’s all under warranty so will take to my dealer but anyone have any other advice on this? Thanks.