If I choose allow u-turn on a route (usually to create a short side-spur part way along a side road to a cafe & back!) without the elevation open, CT will often (but doesn't seem to be always) forget the u-turns when the elevation is subsequently opened (sometimes spontaneously when sending the route to Garmin Connect). I first encountered it sending a route to GC & thought it was a Garmin routing problem but found I could get it to happen entirely in CT simply by opening the elevation. If I create the u-turn with the elevation open it seems more likely to survive closing & re-opening the elevation.
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I could well believe it but… after trying a dozen times I can’t get it to happen. Is it on any particular routes?
Sorry for the delay in replying.
This is the route I first noticed it on - https://cycle.travel/map/journey/381731 - point 8 (between 18 & 19 miles) does it consistently if you open the elevation. Point 9 on this (currently private) route does it too - https://cycle.travel/map/journey/385720
Rick.