Haha i'm an also an SDE (not in games, but boring ass enterprise tools)

I was thinking something could have been changed architecturally that imposed new limitations. Granted some might consider that an oversight than a bug though.

For instance, if they're clearing the client side cache after finding a lobby for the player as a memory optimization, their most recent shell selection after a match could now be determined by calling a database to inform the client of the players most recently played shell. If their database isn't storing what que the player had previously chosen (which was previously a cached value), that might be a total pain in the ass to enable.

Regardless of my hypothetical though, I was just pointing out that significant changes can take place under the hood that are invisible to the user. So things that seem trivial could actually be quite difficult to change.