Modified Peptide in Summarization

[PjotrLang]

Dear LiP team,

I have a data set where I want to include the modified peptides. in SpectronauttoMSstatsLiPFormat I included the option removeModifications=T. However, as soon as proceed with dataSummarizationLiP I get the following error:
1%<simpleError in .Primitive("length")(newABUNDANCE, keep = TRUE): 2 arguments passed to 'length' which requires 1>

I think this might be due to the PeptideSequence/FULL_PEPTIDE column not including the modification and thus creating 'duplicate' entries for a peptide.

Is there a way to work around this issue?

Kind regards,

Pieter