"The image part with relationship ID rld8 was not found in the file"

I have a Mac Air (running High Sierra) user whose images have been replaced with red Xs and the message "The image part with relationship ID rld8 was not found in the file" in word (o365) files from our offices shared network.

this typically happens when she works with the files on the network (vs saving them locally first).

so she will open a word (o365) file on the network, make an edit and save. it will take a long time to save and then when it is reopened (by any user, not just by herself) the images will be missing. this happens on site (in the office) and offsite (running form home through VPN) and it happened before she updated to high sierra as well.

i have read that best practice is for users to save files locally before editing and will encourage her to do that with more consistency but wanted to find out if there was anything else she should be doing  as well.
Dawn Marie StanfordSr. Operations CoordinatorAsked:
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Hector PenaI.T. DirectorCommented:
We had similar problem with NEW macs we bought with connection to Windows server enviorment. What we did was swich the connection from SMB:   to a CIFS: on each MAC and it helped with transfer and image loading. We do not VPN so not sure of the effect on that part.   Just my two cents. Original issue for us was her network data would just randomly be there and then other times be gone and also very slow.

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Dawn Marie StanfordSr. Operations CoordinatorAuthor Commented:
its interesting you say that. we had other users switch to using CIFS to resolve connection issues after upgrading to high sierra. i will give that a try
Eoin OSullivanConsultantCommented:
Just to explain the use of CIFS over SMB
Using the CIFS:// protocol for connecting is simply a type of hack to force OSX to use an older SMB protocol for connecting to Windows servers.
In effect there are a few flavours of SAMBA (SMB) on OSX and NONE of them are perfectly compatible with Windows.
Newer versions of OSX Sierra+ use a new version of SMB which Apple customised and it is less compatible with certain versions of Windows Server than the older SMB protocol which is activated by using CIFS://

You are right that working on files on the local mac and ONLY using the network for copying files over and back will definitely reduce issues but not always eliminate them.  You can still get ownership and permission issues with files if other users are also editing or working on the file on the network.
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