[c#] aaApi_DmsDataBufferGetNumericProperty not returning correct ACCE_PROP_ACCEMASK

i have gone over my code several times and i cant figure out why its not giving me the correct access mask for a folder.

                            IntPtr dynBuffer = PWWrappers.aaApi_SelectAccessControlDataBuffer(PWConstants.AADMSFOAF_IGNORE_USERSETTINGS, PWConstants.AADMSAOTYPE_PROJECT, FolderID, 0, 0, 0, 0);
                            int countofdynBuffer = PWWrappers.aaApi_DmsDataBufferGetCount(dynBuffer);
                            for (int y = 0; y < countofdynBuffer; y++)
                            {
                                int AcceMask = PWWrappers.aaApi_DmsDataBufferGetNumericProperty(dynBuffer, PWConstants.ACCE_PROP_ACCEMASK, y);
                                //see if AcceMask has edit access
                                PWConstants.AccessRightsFlags curFlags = (PWConstants.AccessRightsFlags)AcceMask;
                                if (curFlags.HasFlag(PWConstants.AccessRightsFlags.AADMS_ACCESS_FWRITE))
                                {//has file write access
                                  
                                }
                                else
                                {

                                }
                            }
                            //free buffer
                            PWWrappers.aaApi_DmsDataBufferFree(dynBuffer);

im trying to check which user lists have file write access to a folder. so i loop the buffer and check the access mask but its not returning the correct results when i compare to PW explorer. 

note that the folder im checking does not have a workflow assigned.

i have triple checked that i have the correct folder.

the code above gives me the 2LMN user list access mask as 382 (default flag) but then for the Carpenter-Marty user list I get 102 as the access mask (Write, read, create, and delete)

but you can see from the screen shot that both user lists have the same access control.

its like for the carpenter-marty user list its only giving me the folder security and not the document security on the folder but then the 2LMN user list access mask gives me both folder and document security. what am i missing??? this is driving me nuts.