Mealy bug...?// no chance of sunburn???
I researched this for a few last night because I’ve seen something similar on a leaf or two of one I have. I cut that leaf off...north porch for a spell..now it’s in full sun....
The sites I found that appear any merit to it, seem to say clean leaves with a q-tip dipped in alcohol, or even fine mist with rubbing alcohol...I just am leaving mine to the sun