My uncle was a 33rd degree Mason, and it seemed as though they had some pretty strange ideas about the after life. I mean, ideas that involved the physical body, not just the soul.
There is nothing in the 33rd about after life [speaking from experience].
As an aside, those who are babbling about "Lucifer" might be interested to know that this entity is not mentioned at all in the bible. The concept of "Lucifer" is as the bringer of light - the first household matches a century and a half ago were called lucifers; the substance in fireflies that produces light is luciferin which is acted upon by an enzyme called luciferase.
Not only must all Masons profess a belief in a Supreme Being (not just an impersonal originating force), but they must also profess belief in immortality of the spirit.
Now, as to your vague malaise about immortality of the body, that would likely reflect various odd ideas that individuals have on many subjects. As usual, it is important to distinguish what individuals confect from teaching from what is actually taught. If you have particular ‘strange ideas’ you know about, then stating them would be extremely helpful in clarifying the matter for you. Like many Masons, I am always willing to help make things clear, though I will not engage you in any polemic. In one of our charges, we are strictly forbidden from engaging in argument about misunderstandings.