I commented this in another thread, but it doesn't hurt to repeat it.
When you find a problem with RAD Studio, make sure to create a report in https://quality.embarcadero.com
And - please describe the problem properly!
What you are trying to do
The actual result you got
The result you expected
Most important: How to reproduce the problem
- either as a detailed step by step description
- or as a small, self-contained, compilable example project
- or both of the above
Better reports = better chance of getting stuff fixed.