XDJ-RX Hot Cue button sometimes just plays from current playhead location

On occasion, on my XDJ-RX, when I hit the "Hot Cue A" button, the track just continues playing from the current playhead location, and does not play from the Hot Cue A location. It happens intermittently, but I am certain that this is happening, and I am certain that I am not accidentally hitting the Play/Pause button when this happens.

A few more details: In the circumstance in which this happened most recently, the problem occurred on Deck 2. I was working with just one (different) track in each deck for quite a while. I would start Deck 1, play it it for a while, Hit "Hot Cue A" on Deck 2 and let it play for a while on top of Deck 1, and then push Play/Pause on Deck 2 to stop it, while letting Deck 1 continue to play. After a while I would hit "Hot Cue A" on both Deck 1 and Deck 2 at the exact same to take them both back to the start of their tracks. That is when Deck 2 would just resume playing from its current playhead position.

More details: I am using an XDJ-RX with firmware 1.6.0, and Linking via ethernet (and a Thunderbolt adapter) to a new Apple Macintosh laptop running OSX 10.10, which serves from Rekordbox 3.2.2. The default database happens to be on a USB flash drive (so I can easily update the library on different computers). All of my sound files are AIFF files, either copied from CDs or purchased on Beatport. Quantize and Beat Synch were both turned on.

Information Required for Support

0) Have you read the "READ ME FIRST" thread in its entirety AND TRIED THE SOLUTIONS THERE before posting: Yes, I swear it! (I have also read the XDJ-RX manual and a PDF that I made of of the online Rekordbox manuals from cover to cover several times. I would be delighted to read any additional documentation that you could provide to me. I could also point out a number of functionalities that are not fully documented in these manuals, if you like.)
1) Operating System: OSX 10.10
2) OS Type: 64bit
3) rekordbox version: 3.2.2
4) Using LINK: Yes
4b) LINK Connection method: XDJ-RX + wired
4c) Using with CDJs: No
5) Source Flash drive FAT32 used as laptop volume holding the master database.
5b) Connection type: ethernet
5c) Does the device have multiple partitions: No
5d) If it's a flash drive, is it a U3 device: Unsure
5e) With what utility did you format the device: OSX
7) Have you scanned your files for errors: Yes
7b) Have you scanned your drive for errors: Yes
8) Is rekordbox crashing at all: No
8b) If not crashing, are there any error messages: No
9) Are you able to repeat / reproduce the problem: Yes
9a) If yes, can you do it consistently: No
10) Does the problem occur with one specific song: No
12) Provide as much detail of the issue here: See above