two v. two v. two v. two v. two (full)

[Zooko]

Can you give me another example of a problem, besides the two known problems:

1. We had to re-upload our Pretenders upon restart (a problem now fixed since I have saved the Pretenders this time),
1. Forced-hosting has caused three players to miss their turns already (a problem that will be fixed by turning off forced-hosting), and
2. People are not receiving e-mail notifications of turns (although it worked at least once, it is currently broken).

If you have any other examples of problems in server operation I would like to know what they are in case I can thus fix them.