Auto qcompile mode seems not work on macOS 15 (Sequoia) beta

I have been using following prolog flag for auto qcompie mode, to which I owe much to load fast a number of modules and, so far it works well without trouble.

:- user:set_prolog_flag(qcompile, auto).

However I am investing a trouble that auto qcompile does not work
on macOS 15 (Sequoia) latest beta 4. As I have checked that
it works on macOS 14 (Sonoma), and heard nothing on change of
SWI-Prolog auto compile mode, I suspect something wrong on Sequoia beta 4. I appreciate much if it happens that someone there who could shares related troubles.

There are surely no (deliberate) relevant changes. Note that there is no need for the user:. set_prolog_flag/2 is built-in and only a couple of syntax-related flags are module-specific.

Thanks for remark. One of exceptional flags is unknown, I remember. Then I have dropped that user prefix. Surprisingly, auto compile mode now works as expected. As I have made randomly several changes of codes related to use of use_module/1, this fix seems a lucky coincidence unrelated to that flag.