In my low code app I have created a Variable. Initially I set the type as Text.
I use this variable as a Parameter when launching an automation script.

Now, I've realized I need to change the Variable Type to Number since the Script is expecting a Number.
I then edit my Variable, and change it's type (and confirming), which works fine.

I can then publish my app, and that also works fine.
However, every time I go back to edit my app, the Variable has reverted its type to Text again.
I guess I could create a new Variable, and change all references, but I would like to avoid if possible.

Is this by design, a known bug, or am I missing something?

Using 10.5.12 (CU0) if that helps.