Computer battery went low and screen froze and this morning I have no tracks anymore.
They may be in a layer that is not selected. I would suggest turning on all of your layers and seeing if they are visible then. To do so, simply click the 3 lines in the top left and then select layers. Toggle them on and off by the switch. You can also see all of the items within selected layer by selecting “Items” at the top.
I checked all layers. As battery low came on Coastal explorer froze and after I restarted all my tracks were gone.