Hi Martin,
Thanks for bringing these issues to our attention.
1. Error messages when Key column is not set: We will handle this situation so that more relevant information is provided.
2. Labels misaligned: This is a known issue with version 3.2.1.0 Please download the patch version 3.2.1.1 to fix this problem:
http://www.syncfusion.com/squiffler/patches/v3.2.1.1/syncfusionessentialstudiopatchsetup.exe
Thanks,
Davis