Hi, signs are small, round spots: These first appear on the older leaves of the plant and are initially yellowish or brownish in color.
Larger spots: Over time, the spots get bigger and can take on a gray to brown color. The edges of the spots are often darker.
Leaf loss: Affected leaves can eventually wilt and fall off. This leaf loss can impair the plant's photosynthesis and slow down its growth.
Yours don't look like that, I would keep an eye on them for a few more days.