Multiple reports from EE users that there are problems saving characters in a saved game, even if the instructions are followed to the letter.

One explicitly mentions an error message “Out of memory while expanding memory stream”:

Does anyone here know what the problem is?

I reported this a while back: Compatibility Fixes for EE Needed - #7 by Surazal.

I have noticed that the problem seems to have gone away while using the latest EE Development version. Although this may simply indicate that it is Mod dependent.

I had this problem and fixed it. The issue isn’t on the user side, but the .exe side.

By default, LETO does not have the ‘app can handle >2gb address space’ enabled. This flag must be enabled to provide the .exe with sufficient memory to complete the process.

You can download CFF Explorer to enable the flag. Its quite simple.