Application crash when exporting certain large SF2 to SF3

[zefie]

(Edit: Using v2.5.1 x86_64 on Win11)

I am not sure if its based on size or complexity, but of the soundfonts I converted, the crashing seemed limited to 1gb+.

Here are three SF2s that will crash Polyphone when trying to export to SF3 (Format: .sf3, Quality: High, one file per preset: unchecked)

MixFont.sf2 (1.8GB)
Musyng Kite.sf2 (1020.57MB)
Musyng original (old).sf2 (1.63GB)