well spotted spamiky

in passing I don't think the gallery structure looks right:

Click image for larger version.  Name: imported layer 1.png  Views: 56  Size: 26.8 KB  ID: 134019

'imported layer 1' is shown by xara as a layer, but is nested within 'layer 1'; xara does not do nested layers [more's the pity]

the icon shown is a layer icon and if you drag it up to top level, no way can you drag it back down - so something else has gone on here I would say - it might be prudent to move that layer to where it should be, in case it causes problems, although what effect that would have on the file I can't say...