Using dd to make the stick solved the problem. Startup disk creator isn't writing the stick correctly but just for the 32 bit version. The 64 bit version works fine. Philip marked it as a duplicate of a bug which was resolved. The problem is that the resolve worked only for 64 bit and not for 32.
Working with Philip we narrowed down the problem to Startup Disk Creator
https:/ /bugs.launchpad .net/bugs/ 1512811
Using dd to make the stick solved the problem. Startup disk creator isn't writing the stick correctly but just for the 32 bit version. The 64 bit version works fine. Philip marked it as a duplicate of a bug which was resolved. The problem is that the resolve worked only for 64 bit and not for 32.