Bug? Parser problem with OFFSET i subquery

I have Toad for Oracle 15.0.97.1178.

I have error when formatting it.

How can I fix the problem ?

I opened another Thread few months ago: My Post

Error:

[Error] Syntax check (8: 33): ERROR: line 7, column 33, ending line 7, column 36: Found 'only': This statement may be ambiguous, please report it to Quest Software
Parser: ORA-SQL-PLSQL, on line: 2, context: select 1
from dual
where 1 in (select 2
from dual
offset 0 rows
fetch next 1 rows only)