errors with SPM preprocessed files

Dear Alfonso and CONN users,

I've been trying to get Conn working for a dataset I've been working on, using imported SPM files as a starting point. I have 46 participants, and so far I have gotten everything through the Denoising step to work for almost all of them, but there are a couple of cases that give me errors during Conn's preprocessing (when pressing 'Done' on the Setup page).

One gives the following error:
SOME ERRORS FOUND!: Please revise the Setup information
ERROR DESCRIPTION:

ERROR: Subject 3 Session 1 condition Corr contains onset times beyond the end of the scanning session
ERROR: Subject 3 Session 1 condition Prime contains onset times beyond the end of the scanning session
ERROR: Subject 3 Session 1 condition ISI contains onset times beyond the end of the scanning session
ERROR: Subject 3 Session 1 condition Resp contains onset times beyond the end of the scanning session
CONN19.c
SPM12 + DEM FieldMap MEEGtools

The other gives me the error 'File too small'.

Using SPM there is no problem with the 1st level analyses of these participants, and I don't really know how to check where it's going wrong for either of them within the Conn pipeline. Has anyone had any experience with this, or have any suggestions for what to check?

Thanks in advance.

James