JQL related to order in which tasks are being displayed is in conflict with how the module shows tasks - therefore, it can’t be executed. 

For example:

order by "Start date" ASC
CODE

Jira Server

The query isn't executed at all. Syntax needs to be fixed ("ORDER BY" removed from the search or a Quick Filter accordingly). Afterward, the query can be run again. 

"ORDER BY" JQL keyword is not supported by the App and the query wasn't executed - remove "ORDER BY" from syntax.
CODE

Jira Cloud 

"ORDER BY" JQL is ignored, but the rest of the query is executed normally. 

"ORDER BY" JQL keyword is not supported by the App and was ignored. The rest of the query was executed.
CODE


(info) This restriction is applicable to both JQL based Quick Filters as well as manual use of JQL related to search functionality.