The fish plate bug

Dear MODs,

I and my friends are experience problems when using fish plates,

the problems occur only when buffering on FRIENDs' buildings

1. Use a fish plate but has no effect, though the amount of fish plates decreases...

2. Use a fish plate and see it affects, but after seconds the building come back to a non-buffering state,
the amounts of fish plate may decrease or may not.

3. The number of the crown icon when using and the number of the card in the star menu not match,
but if either of them gets 0 the card can't be used.

4. (not for sure) Two friends buffering the same building at a very close time will only result buffering once but two fish plates are used .

Hope to cope with this buffering problem, and we would appreciate if they are solved :D