We have implemented search in SP Online. The site has many user groups with permission levels like "Read, Edit and Restricted Read". The site is expected to get documents in regular interval and new users will be added and removed from the groups too regularly.
The problem we are facing is when a new user is added in a group, that user is not see any result, but other members of the same group is able to see. (Note: All other permission role in site works properly)
Similarly if a user is part of admin group and is having access to many document is removed and placed in a member group with access to less no of document, still he is seeing all the documents which he was seeing as admin.
Note: Re indexing the site is giving result but after that if new user is added, the same behavior repeats.
Any help on this