error occurred while reading the following files
Hi, I have been using a Garmin 78s for some time with no troubles. While collecting waypoints recently in the field the unit showed that the points where continuing to be collected in numerical order (72, 73, 74) but when I tried to save them to base camp I got the message "error occurred while reading the following files. Which meant that approx. 20 way points were now missing (all collected on the same day), I had collected 98 WP however there are only 78 shown on basecamp but when I went to use the unit yesterday it continued on from 99 with no issue. What has caused this ? Can I retrieve the missing points? And will it happen again anytime soon as this is a massive issue as the data collected is for work purposes.