RadioMaster Tx16 with JR module issue

[Falco]

Quote: It's more likely that the RadioMaster transmitter is affected by heat.  Did you try the XPS module again either before or after you flew the heli later in the day?

I did not try the XPS module later in the day while at the field.  I did try several times at home on the bench and was unable to reproduce the issue.  I also heated the module to +100 degree outside the radio using an extension to the radio and was unable to reproduce the issue.  I wish when it happed after switching to a second XPS receiver I had tried a non XPS receiver to rule out the radio (this may not have been conclusive).  Perhaps the issue is with both the RM and the module.  Never had a hiccup with my 9c and futaba module.

Quote: you can cause the choppy servo movement with the Nano (or other receiver options) if you do not bind the receiver with the exact number of channels being used.  For example, if you bound the Nano with 6 channels assigned and you found out later that you really only needed 5 channels or you needed 7 channels, and made the change necessary without rebinding afterwards, you can experience the choppy control because the wrong frame rate data and number of channels is being used.  Typically, this is immediately noticeable but not always.  

I did experience this when I first got the Radiomaster.  I was told (by XPS) to move the module mode from PPM to XJT.  This seemed to resolve the issue.  Attached is an image of the settings I'm currently using on the RadioMaster and the JR XPS module.  Normally there is no apparent issue( for hundreds of flights).  When the issue presents during preflight, it is obvious and the aircraft would be unflyable.  I could switch the mode to XJT D8 and reduce the channel number.  I'm not sure if that would make a difference. Unfortunately the issue is not normally present and therefore difficult to know when it is resolved.  I would like to be able to figure this out so I don't have to give up my many Nano receivers.  Thanks for any assistance.