Unsure at the moment if this is CRJ related or MSFS (I will test additional aircraft in the near future) but I repeated the same crash under the same conditions twice. KEWR to KDCA. DCT BIGGY V3 MXE CLIPR2 RW19 transition route. Descending just under 10,000 following the CLIPR2 arrival and both times MSFS crashes. Could be MSFS will try with new cache and A320 soon and report back (~48 hours). 

For me to. Flying only the CRJ 700 for IFR.   Very enjoing. Peter

This.   You specifically stated yourself that some may see this as a bug.  My opinion is that you are correct, some will, however if it's made obvious that the gauges are all of a different era due to  replacement on failure, then people will note that it's not a bug.

Hi all,   I've forwarded this to the testing team and will get back to you once I receive a reply

Hi Jan,   glad you already found a solution to your issue. I'm afraid we cannot support any third party modifications for the CRJ.