'APCViolation' exploit prevented in crystal16

Hi Team, We have some systems where Sophos clients are running and considering below path suspicious.

PathC:\Program Files (x86)\Avantium Technologies\Crystal16.exe

I have created global exclusion in two ways:- 1) Based on File or folder (Windows)

2) Detected Exploits (Windows/Mac)

After creating those exclusion also we are getting alert from Sophos clients. 

Please suggest what else i can check from my side.

Thanks