Hi,
FYI, Anthonin Bonnefoy has diagnosed an issue that could well be theone you're seeing:
https://www.postgresql.org/message-id/flat/CAO6_Xqr63qj%3DSx7HY6ZiiQ6R_JbX%2B-p6sTPwDYwTWZjUmjsYBg%40mail.gmail.com