Hello Anthony Rudd ,

I think you might be referring to this previous thread-

https://community.sdl.com/product-groups/translationproductivity/f/general/21575/corrupted-powerpoint-file/86700#86700

This thread went cold as no further information was provided.

Are you able to open the file as a single file translation and then without doing anything- immediately SAVE AS?

You said-

Anthony Rudd said:

I also have this problem today, although there was no problem yesterday.

Is this the same file or a different one?

Do you know which version of PowerPoint was used to create the file? Which version are you using?

Did you close down Studio after you finished working yesterday, or simply put the computer into sleep mode?

The more information you can provide the better.

Sorry for not replying earlier, but I am currently travelling.

The problem occurs with Studio 2019.
The file is the same one as before, other than some updates had been made.  

Hello Anthony Rudd,

This might suggest that the file has become corrupted since you have worked on the file and updated it.

If you take the original file - open this as a new project and then SAVE AS- does this work fine?

If so, I would suggest making sure your machine is completely up to date and that you temporarily disable the antivirus/ third party apps such as CCleaner and then pre-translate from the TM.

Also im wondering whether you are working online whilst travelling and thus using multiple WiFi connections (cloud storage).

Hello, if you still can not find a solution, I think you can try some recovery tool. I have used Bitwar Data Recovery to recover my corrupted files. This tool is free, easy to use and effective, I think you can also have a try.