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Update file mid project in Studio 2019

I am trying to do a mid project amend using the new update file feature in Trados Studio 2019 to a file that is currently out with 16 translators. When I try and update the file in the original language option I get an error that tells me that I do not have permission to check out one or more of the selected files in their current phase. And although I have administrator privileges, I am unable to assign myself to phases on the original language.

When I try and update the file from within one of the language windows that we are translating to, it goes through the process but I get an error message that says that the bilingual reference file could not be located for all languages.

Any ideas as to how I resolve these errors?
Or am I misunderstanding how I complete this process?

Thanks in advance!