I get weird ERR messages in XHSI, while display on primary ND is OKAY.
See attached image for reference (don't bother about the cold MCP. Shot was taken during shutdown, but on flight indications were the same).
Problem happens using XHSI 1.0 and using XHSI 2.0 Beta (Release 3, i think).
The shown DME and CRS values seem to be correct, BTW.
No course/Radial indicator lines were shown, too.
I also figured, that it occurs when toggling frequencies: First I only got that ERR only with NAV2. When I switched to the Navaid on NAV1 STBY the same occured for NAV1.