Predict problem? (std exception detected: Invalid argument)

Created by: darafferty

When trying to predict A-team models (in Prefactor), I get the error "std exception detected: Invalid argument" with the following command:

DPPP msin.datacolumn=DATA predict.sourcedb=Ateam_LBA_CC.make_sourcedb_ateam predict.type=predict predict.sources="[VirA_4_patch,CygAGG,CasA_4_patch,TauAGG]" numthreads=2 predict.usebeammodel=True steps="[predict]" msin=L658738_SB198_uv.ndppp_prep_target msout.datacolumn=MODEL_DATA predict.usechannelfreq=false predict.operation=replace msout=L658738_SB198_uv.ndppp_prep_target

Strangely, this only happens on certain MS files. Additionally, if I add "dummy=dummy" to the end of the above command, it works (after printing a warning about misspelled arguments)! This is with the current master -- I can supply the input files if they're useful...