In order to fix the issue, we must first reproduce the issue in our labs. We are unable to reproduce the issue with the steps you provided using the Xafari demo, shipped with XAF. We do not have ideas why this error can occur on your machine either.
Could you please provide us with the following info?
1. A small demo project, reproducing the problem;
2. Detailed steps to reproduce the problem.
We want to help you and are looking forward to hearing from you.
On behalf of Xafari Client Services Team