Yes I do try to keep them up to date, but I don't find it very easy, it's not very intuitive, I usually take 3 or 4 attempts to get it rightDid you correct it? I update OSM if I find missing stuff or alignment issues. Did a walk earlier this week and missing footpaths and some shown don’t line up with what’s on the ground. So will load my gpx up this weekend and sort out OSM for the problem areas. I also update surface type of cycle paths where I find they are tarmac etc.