Q.Small Beige Spots On Stephanotis Jasmine
These small beige spots are on older leaves and no sign of any bugs. Plant next to it bought at the same time is ok, both stephanotis Jasmin.

Certified GKH Gardening Expert
There is no photo and it doesn't say whether they are inside or outside, but the plant with the spots may be getting more sun than the other and it is leaving some burned spots. These plants can be fussy about their care requirements; they need moist soil and a warm, humid environment. Lack of humidity also can produce beige spots. If there aren't too many leaves with spots, just remove those leaves, and focus on the care tips in the article below:
https://www.gardeningknowhow.com/ornamental/vines/stephanotis/stephanotis-plant-care.htm