I hope you guys can help me: I use Inkscape to draw maps. I use the calligraphy tool to draw rivers. This used to work perfectly fine, resulting in beautiful, smooth rivers. For some time now, I get results like this:

The problem here is that there are gaps and "jumps" in the rivers, and instead of a simple, smooth object I get... that.
I couldn't say that this is an explicit software issue; I do not think it sprang up with any particular update. I also do not recall any settings that could affect this. I thought at first that it was because my old tablet's pen's tip was very rough and worn, but it also happens with a brand new tablet.
I have the wiggling option of the calligraphy tool set to 0, as all other settings except width of the pen (naturally), and I do have pressure sensitivity for width enabled.
Any ideas would be appreciated, manually editing these rivers after drawing them is an absolute pain...
Thanks,
Nils