My app stores the names of folderItems, such as PDFs, and then finds and displays them when the users selects the name from a popup menu. I ran into a subtle change in 2019R3 that broke existing code and may affect others.
Although the file name is UTF-8 encoded in both versions of Xojo, the bytes differ (precomposed vs. decomposed?)? Here's an example for the file name
In R1.1, the bytes are
4B72 C3A4 6D65 7220 3230 2E70 6466
In R3 they are
4B72 61CC 886D 6572 2032 3031 332E 7064 66
The good news is that when I search for f.child("Krämer 2013.pdf") with the first encoding it finds the file whose name has the second encoding (in the IDE).