How it manifests itself: in the new LC, the choice of synthesis is not saved in scenarios. The synthesis that was used before the changes will be used.
The synthesis can be changed if you change the text synthesized in a specific block. The synthesis will change only for this block.
In other cases, choosing a different synthesis will not change anything - after saving the script, the phrases will be synthesized in the old voice.
Our specialists are already working on a solution.