This is a really odd problem.
I have a Custom List with list item attachments.
When I edit a list item with a existing attachment and delete the existing attachment then proceed to upload a different attachment it seems to nullify the original deletion. After I save the item then re-edit both attachments are available.
If I delete the attachment without adding a additional attachment I don't have a problem.
The interesting thing is that I can not replicate this issue on my development environment which has a recent copy of production applied to it.
I need to collect the following Information to further troubleshoot the issue:
Does the issue exists in other lists of the same site?
Does the issue exists in other lists of other sites?
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- Proposed as answer by Grace WRMicrosoft contingent staff Thursday, March 30, 2017 11:04 AM