Convert from Dragonfly 9.2 failing on "duplicate" topics

[Warwick Chapman]

Happy holiday holas to you all

I am busy with test migration from Dragonfly CMS 9.2 to SMF.  Because my SMF 2.x conversion failed, I have taken advice from various posts on this forum and started from SMF 1.1.x and tried to convert from there.  However, the 1.x conversion is failing too complaining:

Converting topics... Unsuccessful!
....
Caused the error:
Duplicate entry '318197-18' for key 3

From what I can see this is the result of topics which were moved or merged.  I have converted to phpBB 3 and it did so without complaint - so the source DB can't be horrific.

Any pointers?

[Warwick Chapman]

Hi

Please could anyone assist with this...  Any help would be appreciated.