Get Report Slice Broken

When using the get report function (using compact form in this particular case), flex will consistently drop values from the slice when you minimise a row at the root, or in the middle of the tree view.
 
For example, take a simple report, with ten or so JSON values in a compact form with four fields set as rows and the values placed in columns. Expand a node through each of the levels, providing a tree structure of four deep. Perform a quick get report function and display the character count of the current slice.
 
Repeat this step for each node of data, taking note of the character length, as you expect, it should increase. Take note of the final number once you have expanded your final node.
 
Now, in the same report, minimise one of the nodes either at the root, or at level two. Now perform the same character count on the slice, it should be significantly smaller than the last (or even second last) value. Flex seems to have an issue getting the slice after minimising a tree half way through a node.