Can I upgrade the Grid King while trades are still open?

[Hulkson]

Can I upgrade the Grid King while trades are still open?

 

[Grid Master]

In principle, yes. But if you don’t have a very good reason why you can’t wait for Grid King to close properly before upgrading, I would much rather wait.

 

[Hulkson]

In principle, yes. But if you don’t have a very good reason why you can’t wait for Grid King to close properly before upgrading, I would much rather wait.

I don't have an urgent reason, so I'll just keep it like it is until all the grids are closed.

Thanks @Grid Master

 

[Bean]

I've done it, and even though it goes OK most of the time....it doesn't go ok ALL the time.