It looks as if this cells were "shallow deleted" - most of them i can see as separate topcells.
This effect was found on all versions, what i try, 0.24.1 and 0.24.2, OS - 32-bit windows XP SP2.
I already sent additional info by e-mail.
Thanks!
Sorry for delay.
I already had imported files manually, but I definitely will try your script.
Overall, as topological editor - your KLayout, by my opinion, even more comfortable, than the Tanner L-edit 15. Thanks, Matias, it's The Great …