I imported a .sup file in SubtitleEdit v3.58 and it crashes on export. Just for grins I also tried v3.57 and it works fine. See attached .sup file I used.
Cuireadh roinnt torthaí i bhfolach toisc go bhféadfadh siad a bheith dorochtana duit
Taispeáin torthaí dorochtana
Aiseolas