Hi Rengarajan
Thank you for being patient. We have tested your sample VSDX files against the latest build of Aspose.Diagram for .NET 6.7.0 and managed replicate the issues as below:
File Name: Dialog - 2.vsdx
DIAGRAMNET-50952 - Invisible table border and the bold text problem on converting a VSDX to PNG
File Name: Dialog - 3.vsdx
DIAGRAMNET-50953 - The text items are displaced on converting a VSDX to PNG
File Name: Dialog - 4.vsdx
DIAGRAMNET-50954 - Formatting problems in rendering a table and radio button on converting a VSDX to PNG
File Name: Dialog - 5.vsdx
DIAGRAMNET-50955 - The text items of diamond shapes are displaced on converting a VSDX to PNG
File Name: Dialog - 6.vsdx
DIAGRAMNET-50956 - The text items are displaced on converting a VSDX to PDF
DIAGRAMNET-50957 - A table is missing on converting a VSDX to PNG
File Name: Dialog - 7.vsdx
DIAGRAMNET-50958 - Invisible table border and the bold text problem on converting a VSDX to PNG
File Name: Dialog - 8.vsdx
DIAGRAMNET-50959 - The borderline of the table is missing on converting a VSDX to PNG
File Name: Dialog - 10.vsdx
DIAGRAMNET-50960 - The top border line of the table is missing on converting a VSDX to PNG
File Name: Dialog - 11.vsdx
DIAGRAMNET-50961 - The top border line of the table is missing on converting a VSDX to PNG
File Name: Dialog - 13.vsdx
DIAGRAMNET-50962 - The border lines of tables are missing on converting a VSDX to PNG
File Name: Dialog - 14.vsdx
DIAGRAMNET-50963 - The border lines of the table are missing on converting a VSDX to PNG
File Name: Dialog - 15.vsdx
DIAGRAMNET-50964 - The text items are bold and displaced on converting a VSDX to PDF
File Name: Dialog - 16.vsdx
DIAGRAMNET-50965 - Missing a borderline and the text alignment problem on converting a VSDX to PNG
File Name: Dialog - 17.vsdx
DIAGRAMNET-50966 - The text items are bold and displaced on converting a VSDX to PNG
File Name: Dialog - 18.vsdx
DIAGRAMNET-50967 - The text items are bold and missing border line while converting a VSDX to PNG
File Name: Dialog - 19.vsdx
DIAGRAMNET-50968 - Rendering problem of tables and the incorrect text alignment while converting a VSDX to PNG
File Name: Dialog - 20.vsdx
DIAGRAMNET-50969 - Incorrect alignment of the text and formatting of dynamic connectors on converting a VSDX to PNG
File Name: Dialog - 21.vsdx
DIAGRAMNET-50970 - The top left border line of the table is not visible on converting a VSDX to PNG
File Name: Dialog - 22.vsdx
DIAGRAMNET-50971 - Incorrect text alignment of the shape on converting a VSDX to PNG
File Name: Dialog - 23.vsdx
DIAGRAMNET-50972 - The text items of table are bold on converting a VSDX to PNG
File Name: Dialog - 24.vsdx
DIAGRAMNET-50973 - Rendering problems of a table and incorrect text alignment on converting a VSDX and PNG
File Name: Dialog - 25.vsdx
DIAGRAMNET-50974 - Rendering problems of a table and incorrect text alignment on converting a VSDX and PNG
File Name: Dialog - 26.vsdx
DIAGRAMNET-50979 - The text items are misplaced and arrow lines rendering problems on converting a VSDX to PNG
File Name: Dialog - 27.vsdx
DIAGRAMNET-50980 - The numbers inside the diamond shapes are misplaced on converting a VSDX to PNG
File Name: Dialog - 28.vsdx
DIAGRAMNET-50981 - The text items are bold and displaced slightly on converting a VSDX to PNG
File Name: Dialog - 30.vsdx
DIAGRAMNET-50982 - The bold text and invisible left border lines of the tables while converting a VSDX to PNG
File Name: Dialog - 32.vsdx
DIAGRAMNET-50983 - Bold text items on the table while converting a VSDX to PNG
File Name: Dialog - 33.vsdx
DIAGRAMNET-50984 - The border lines of the table are missing on converting a VSDX to PNG
File Name: Dialog - 34.vsdx
DIAGRAMNET-50985 - The text items are not aligned properly on converting a VSDX to PDF
File Name: Dialog - 35.vsdx
DIAGRAMNET-50986 - Bad quality of the icons on converting a VSDX to PNG
File Name: Dialog - 36.vsdx
DIAGRAMNET-50987 - Rendering problems of a table on converting a VSDX and PNG
File Name: Dialog - 38.vsdx
DIAGRAMNET-50988 - The top border line of the table is not visible on converting a VSDX to PNG
File Name: Dialog - 39.vsdx
DIAGRAMNET-50989 - Rendering problems of a table on converting a VSDX and PNG
File Name: Dialog - 40.vsdx
DIAGRAMNET-50990 - Plus, negative and dollar signs are not properly aligned on converting a VSDX to PNG
File Name: Dialog - 41.vsdx
DIAGRAMNET-50991 - Rendering problems of a table on converting a VSDX and PNG
File Name: Dialog - 42.vsdx
DIAGRAMNET-50992 - The left border line of the table is not visible on converting a VSDX to PDF
File Name: Dialog - 43.vsdx
DIAGRAMNET-50993 - Plus, negative and dollar signs are not properly aligned on converting a VSDX to PNG
File Name: Dialog - 44.vsdx
DIAGRAMNET-50994 - Rendering problems of a table on converting a VSDX and PNG
File Name: Dialog - 45.vsdx
DIAGRAMNET-50995 - The border lines of the table are missing on converting a VSDX to PNG
File Name: Dialog - 46.vsdx
DIAGRAMNET-50996 - The text items are not aligned properly on converting a VSDX to PNG
Your post has also been linked to these tickets. We'll keep you informed regarding any available updates. We're sorry for the inconvenience caused.