Yesterday, July 3rd, I did a BGSF-CYDF route. It's not the first time I fly a route involving coordinate waypoint, but it's been a while. When preparing for this route I recevied an "DOWNLOAD ERROR" error from ACARS menu after requesting Simbrief data. Despite the error, the flight plane was ok with one waypoint shown as the usual 55N054W and the other one as a FIX3 with the proper coordinate. I did the flight without any problems. Today I tried CYHX to KJFK with the same Simbrief download error, but this time there was no Flight plan to be flown. In both situations I could download the flight plan at EFB. I don´t have any FSPUIC here, as far as I am aware (never installed).
I've restarted MSFS after removing and reinstalling AIRAC 2406 rev. 2 data using NAVIGRAPH HUB. At first, the aircraft loaded but it wasn't respoding to battery or ext power. The EXT power button light would be on but not system was responding. Restarted the flight and all seems fine now.