Hardcore not releasing filament at the end of a print

[The3DPrintStudio 5]

I have the 3dSolex Hardcore with 0.4mm and 0.8mm nozzles. When printing I have noticed with both sizes that when the UM3 does the final retract at the end of a print after the nozzle has cooled a little bit that the filament is stuck in the nozzle and causing some grinding and raises the nozzle enough that active leveling doesn't work for the next print. Is there a way to change at which temp the UM3 does the final retract. I have the machine set to PLA and this has happened with two different types of PLA. I had not noticed any issues like this when using the UM printcores.