Query locked: Not possible to read variants

What causes this issue?

An attempt was made to read the query variant. The query variant
contains the selection conditions and additional settings that were
made when creating the query. For the variant to be read the query muct
first be generated. This is, however, not possible since the query is
currently being locked by another user.

System Response

The variant cannot be read. As a consequence, neither the selection
conditions nor the additional settings can be determined. The query is
thus loaded with the variant information.

How to fix this error?

Ensure that you are not locking the query yourself. Try again later.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.