I got these 2 black velvet alocasias in the mail on Friday, (March 24th) the heat pack in the box wasn’t hot and they were a little cold. I repotted in 50/50 perlite and peat moss with a well draining pot, and gave them some water and they have been in a south facing window (pictures below). They have some brown spots, one is worse than the other. I have a led lamp for when it’s gloomy out like today. Is this normal for plants that have been shipped in the cold or are they sunburnt?