@surfboomerang I’ve brought up this issue a couple of times already. The issue is also obvious just by looking at the time labels - the time difference between them varies quite a bit even though the distance between them on the graph is the same.
Servers were undergoing maintenance and all your activities will/should sync to SA. SA does not sync to Movescount and if you use custom sport modes in SA or routes you will not be able to sync to Movescount via cable.
@Bram-Pauwels I am sorry for you, but if you do a FW upgrade in the watch before sync you lose the activities. What you see in the watch is a summary of the activity not the activity itself.
So, one should always sync before the watch FW update.