Hello, has anyone else had issues with the medtrum nano patch pump? I moved on to it last summer but have since been having loads of issues with "patch errors". I rarely get the point I change it because it's ran out. 95% of the time it fails and needs changed. This problem keeps happening even when I'm setting up a new patch. I've really lost faith in it and I'm planning to move back to my old medtrum patches (a7 model I think) they never let me down. Anyone has issues?