I've run into an issue with 6.0.13 (and previously .11) when using PMDG 737. I have been troubleshooting loss of airspeed and altimeter displays on the PFD of the 737. During startup, and sometimes the flight, the altimeter and airspeed indicators freeze. I've been working with PMDG on this, and at their recommendation removed FSUIPC. This seems to have resolved the problem. I have even encountered this when starting with no FSUIPC.ini file. I've also encountered a problem with FSUIPC and the AEROSOFT CRJ 2.4.0.0 throttles.
I have been using FSIUPC with PMDG, FSL, Aerosoft, etc. for years without problems. These issues all started around the time of the latest PMDG release and the addition of Honeycomb Bravo quadrant, and starting to actively use the Honeycomb configuration program.
P3DV5 latest, freshly installed. All of my addons are up to date. My support programs TrackIR, Chaseplane, FS2Crew and Pilot2ATC are all up to date. Running Win10 20H2 with all updates. Intel i9-10900K 4.9Ghz, ASUS Strix RTX 3090, 32 GRam.
Please let me know what additional information I can provide to help solve this issue.
Dave Wadsworth