Trying to update the search query suggestions by uploading 'QuerySuggestions_alwayssuggest.txt' file, and they are not getting reflected after upload, even after awaiting for 2 days (allowing Prepare Query Suggestions daily job, to complete) [suppose to show on next day though]. But the new updated suggestions are not shown.
The same file worked fine when uploaded to a SP 2013 on-premise. (that confirms there is no issue with the file format, content etc. )
Appreciate any suggestions or if there any known issues or limitations with SP Online, with manual import of Query suggestions.