Funny lines in file exported from FontLab

I opened a very old font of mine done in FLS5.0 in FL7.0 and exported it as a Glyphs file. When I opened it in GlyphsApp, some glyphs show some light blue lines. I’m not sure what they are. Removing all hinting data with mekablue scripts, both TTF and PS, says ‘removed 0 instructions’. How do I get rid of these lines?

Something is wrong with the “curve” setting of some nodes. There are blue nodes after a curve segment.

If I export it as OpenType PS font and open it in Glyphs, the strange lines dissapper. TTF also works but I prefer to work with cubic curves while editing.

Can you send me that .glyphs file?