e165 v17.45 units selection

[markct]

Further troubleshooting results-
With STng disconnected, the e165 allows selection of units (speed & distance). Connecting STng and ST converter still allows units selection. Connecting ST60 Tridata (through ST converter) causes e165 to default to speed = knots, distance = statute miles; any attempt at units selection reverts back to knots & statute miles. Changing units (nm/sm) in ST60 Tridata has no effect. I believe this problem did not exist with software version 16.47. Can you supply v16.47 for testing?

Is this a software issue, ST converter issue, or Tridata problem?
Mark