I asked the support. Answer below; Hello, Only the administrative users of the project can close the ticket. Sincerely, SourceForge Support! Anyway Thank you for the binaries 3.2.24
Using the Version 3.2.24 the fix incorporated in 3.2.23 works. Please close this ticket (I cannot do that ?)
Attached a short description how I fixed the error for me. Would be nice, if this correction could be integrated into the repository.
Another option might be -attach "ing.tx*" with your example directory list. Not adressing the actual problem but yes it runs (even quoted!). It seems, that blat has its own routine to collect files from using filenamepatterns (cmp. attach.cpp -> collectAttachmentInfo using Win-API -> FindFirst/FindNext) Commas and spaces in filenames present problems with parsing, because the C programming language uses these two for its own internal command line parsing. Not C, but the startupcode of the used C-runtimelibrary....
Using a quoted attachmentfilename -> further files in list not attached