Unselectable stuff in Inkscape

I'm putting this here just in case it happens to someone else and they are freaking out. If you are editing an SVG file in Inkscape and something won't select if clicked on, it seems like it is locked, uneditable, read only, unmodifiable, or immutable (all search terms I was trying): then it might be that some of your image is in separate, locked layers. Layers can be locked, making elements unchangeable until you unlock the layer in the layers dialog.

Hope this helps.