Not sure if this is dropbox problem, microsoft problem or apple problem! I have been saving powerpoint files from ipad to dropbox forever - this week I have a problem. Original file saved in dropbox. Downloaded and saved on ipad for presenting. Changed some slides, saved to ipad. Save copy to dropbox - file already exists, replace it? yes (using exact same name and configuration as original) error - can't be saved file has unacceptable characters or file name is too long - but file pops up in dropbox without any content 0kb. Any suggestions?
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