1) your new soil is too moist. Some new potting soils now
come with moisture enhancers added (Miracle grow and some others)...for plants that like to dry out between waterings
this is just not for THEM! Dry lovers may rot. So read the bag of potting soil carefully. For most container plants the moisture thingy is helpful, but not for cactus or succulents.
2) OR... when you moved it, you either buried the crown slightly
deeper by accident, and the crown is rotting out. Some plants cannot stand to be pinched or have soil around their crowns.
I have done dry loving plants, and I try to put sand around the crowns of those. So moisture drains away from that critical area.
I've never done Aloes, but I have seen them.
This website gives some tips...they are similar to what I said.
http://www.thegardenhelper.com/aloe~vera.html
I didn't know they had shallow roots...that would explain maybe your rotting problem?
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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