I see a sorting in repeating grid going in indefinite loop after we click on the sort option multiple times with the large set of records (don't see this happening if the result set is small). 

Here is the steps for recreation or i followed:

1. Create a Section which has the repeating table which source the records from the datapage

2. While sourcing the datapage send the required parameters externally ( passing the parameter works fine)

3. Datapage is sourced from the report definition 

Please suggest incase if any one encountered this situation before and any thoughts which solves the issue. Thank you!