I do have the same issue on ubuntu 20.04 but also 22.04. Running it in terminal here is the error I obtain
(.gabedit.exe:841696): Gtk-CRITICAL **: 11:07:51.126: gtk_text_buffer_emit_insert: assertion 'g_utf8_validate (text, len, NULL)' failed ** Gtk:ERROR:../../../../gtk/gtktextbtree.c:1176:_gtk_text_btree_insert: assertion failed: (g_utf8_validate (&text[sol], chunk_len, NULL)) Bail out! Gtk:ERROR:../../../../gtk/gtktextbtree.c:1176:_gtk_text_btree_insert: assertion failed: (g_utf8_validate (&text[sol], chunk_len, NULL)) Aborted (core dumped)
I do have the same issue on ubuntu 20.04 but also 22.04. Running it in terminal here is the error I obtain
(.gabedit. exe:841696) : Gtk-CRITICAL **: 11:07:51.126: gtk_text_ buffer_ emit_insert: assertion 'g_utf8_validate (text, len, NULL)' failed ../../. ./../gtk/ gtktextbtree. c:1176: _gtk_text_ btree_insert: assertion failed: (g_utf8_validate (&text[sol], chunk_len, NULL)) ../../. ./../gtk/ gtktextbtree. c:1176: _gtk_text_ btree_insert: assertion failed: (g_utf8_validate (&text[sol], chunk_len, NULL))
**
Gtk:ERROR:
Bail out! Gtk:ERROR:
Aborted (core dumped)