When converting databases to a newer version that no longer supports PICTs, it is common to use the utility method to convert all library PICTs to PNGs using the tech tip below:
https://kb.4d.com/assetid=77963
However, there can still be project/table forms containing static PICTs outside of the picture library. In this case, it is recommended to use MSC Verify which will find all static PICTs still lingering in these forms. When viewing the verification log, use a text editor and search for the term "PICT ID" which will reference the forms and objects still containing the PICTs. To convert these PICTs to PNGs:
1. Make sure the database is opened in its original version still supporting PICTs
2. Drag the static PICT to the picture library
3. Run the method in the aforementioned tech tip to convert it to PNG format