Dimeric protein complex not remaining in AF-Cluster a3ms

[jimfeng9705]

I tried to generate clustered a3m from the a3m file in the attachment nNOSoxyFMN_relaxed_4e4bb.zip; it is of a homodimeric protein complex.

However, the generated EX files only have one protein; an example was also attached. EX_001.zip

How can the two proteins be clustered? The header should be similar to the 'parent' a3m, too.