The issue was that I had inadvertently saved the All Items view when a filter was on.
The 'filter icon' was not next to the column name, however, so I didn't realise it.
The solution was to go into List Settings > Views > All Items and choose the Show all items in this view option.
Then all items that I had previously added were shown.
Since it is an intermittent problem, it is hard to determine the root cause.
I need to collect the following information to further troubleshoot the issue:
Are you working in SharePoint online or SharePoint on-premise?
How many items exists in your list?
What is the permission of the user who met the issue?
Does user with full control permission will ...
The supported limit is 50,000, but the recommended general limit is 5,000. Making changes to more than 5,000 uniquely permissioned items at a time takes longer. For large lists, design to have as few unique permissions as possible.
As the number of unique permissions in a list increases, performance decreases. The throughput difference for operations on a ...
Maximum unique permission in a list is allowed 50,000 but as per Microsoft recommended is 5000
Reference Articles :
Software boundaries and limits for SharePoint Servers 2016 and 2019
SharePoint Permissions: Maximum number of unique permissions in a SharePoint library
The reason you only see Title in the second axis list and not PPE Type is because it is the only field on your list that is a "single line of text" data type; Microsoft has not added support yet for different column types beyond "single line of text" and "number".
In fact, as of this writing not everyone has even received the feature rollout to connect a ...
You could use Look up column to display the count of comments.
In the list, create a lookup column which get information from document library title column for document name.
In the document library, create a lookup column which get information from list document name column (Count Related) as below:
Check the article for more information about the lookup ...