Any limitation of Elasticsearch in Nextcloud in term of how many number of users are supported

[kevinkuan1969]

Fresh install Nextcloud from 26.0.0 to 26.0.2 with Elasticsearch Version: 8.7.1.
All work well for the first 2 users with admin role.

No search results return after the third users onward........
Any setting can be done to enable to all users. Thanks.

[kevinkuan1969]

Using command below to check the difference between the two documents from successful user vs non successful user. The non successful user who cannot return any result from Elasticsearch contains NULL value in User field.

 sudo -u www-data php occ fulltextsearch:document:platform files