Without having something changed in SII, suddenly the scripts in the SII-map editor won't show the cursor anymore and even worse: copying isn't possible anymore. When I press Ctrl+C it simply "remembers" an empty string. There's no problem with Ctrl+V because I can copy strings outside SII and insert them in the map without problems.
I went ahead and downloaded a new version of SII but the problem stayed! How is that even possible? There must be a problem with my PC, right?