Hi @Anonymous
When you add the flow to a solution within an environment, it gets removed from the tab and gets added to that solution. Now if you go to the solution, you can see the flow over there. You can open the flow from the solution, export it and then import it again to the environment (not to the solution). Now if you remove the flow from the solution, you will see it in the default solution (note that if you delete it from the default solution, the flow will be gone and you will not be able to retrieve it.)

Note that if it is in the default solution, you might have to search it with the flow name (as there are many components already in that solution).
Hope this Helps!
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