Greetings. I did not know about this since it is not mentioned in the rules, but if you manage to win all tricks in a round you shoot the sun, meaning you get minus 26 (36 if the jack of diamonds rule is activated) while all the other players get 26. However, there is a small problem with this. If you are winning all tricks, but all cards which give points are played, meaning all hearts, the queen of spades and the jack of diamonds if active, the round ends instead of letting you collect the rest, so you can't do it. I was wondering if this is a mistake or it's intentional.

Hello,

Ending the round when all scoring cards have been played is intentional.

Quoting the rules:

If a player manages to take all cards that are worth points, i.e. the queen of spade and the 13 hearts, he's said to have shot the moon.

You have shot the moon if you took all scoring cards, not necessarily all the tricks. In other words, we don't care about who win tricks that are worth nothing.

IF shooting the sun is another rule, it isn't implemented. It could be interesting ! In which case you are right, stopping the round prematurely creates a conflict.

Aminiel, I think you worked too much today :) the rule is already implemented on the Playroom, perhaps you just forgot about it. It is not in the rules, but look at this history where I took all the tricks, both with and without points and see what happens:
The game starts.
The following cards have been removed from the deck: 2 of diamonds.
Round #1.
Choose 3 cards to give to Calamity jane:
Haven't yet discarded: Nikola.
Have already discarded: Calamity jane and Robotnick.
Nikola gives 3 cards to Calamity jane.
Calamity jane gives 3 cards to Robotnick.
Robotnick gives 3 cards to Nikola.
Robotnick gives the 8 of hearts, the queen of clubs and the king of diamonds to you.
It's Calamity jane's turn.
Calamity jane plays a 2 of clubs.
It's Robotnick's turn.
Robotnick plays a 9 of clubs.
It's your turn.
9 of clubs, Robotnick
Nikola plays an ace of clubs.
Nikola gets the trick.
It's your turn.
Nikola plays a king of clubs.
It's Calamity jane's turn.
Calamity jane plays a jack of clubs.
It's Robotnick's turn.
Robotnick plays a 5 of clubs.
Nikola gets the trick.
It's your turn.
Nikola plays a queen of clubs.
It's Calamity jane's turn.
Calamity jane plays a 3 of clubs.
It's Robotnick's turn.
Robotnick plays a 4 of clubs.
Nikola gets the trick.
It's your turn.
Nikola plays a 10 of clubs.
It's Calamity jane's turn.
Calamity jane plays a jack of hearts.
It's Robotnick's turn.
Robotnick plays a queen of spades.
Nikola gets the trick.
It's your turn.
Nikola plays an 8 of clubs.
It's Calamity jane's turn.
Calamity jane plays a 10 of hearts.
It's Robotnick's turn.
Robotnick plays a king of hearts.
Nikola gets the trick.
It's your turn.
Nikola plays a 7 of clubs.
It's Calamity jane's turn.
Calamity jane plays a 7 of hearts.
It's Robotnick's turn.
Robotnick plays a queen of hearts.
Nikola gets the trick.
It's your turn.
Nikola plays a 6 of clubs.
It's Calamity jane's turn.
Calamity jane plays a 5 of hearts.
It's Robotnick's turn.
Robotnick plays a king of spades.
Nikola gets the trick.
It's your turn.
Nikola plays an ace of spades.
It's Calamity jane's turn.
Calamity jane plays a 5 of spades.
It's Robotnick's turn.
Robotnick plays an 8 of spades.
Nikola gets the trick.
It's your turn.
Nikola plays a jack of spades.
It's Calamity jane's turn.
Calamity jane plays a 4 of spades.
It's Robotnick's turn.
Robotnick plays a 7 of spades.
Nikola gets the trick.
It's your turn.
Nikola plays a 10 of spades.
It's Calamity jane's turn.
Calamity jane plays a 2 of spades.
It's Robotnick's turn.
Robotnick plays a 3 of spades.
Nikola gets the trick.
It's your turn.
Nikola plays a 9 of spades.
It's Calamity jane's turn.
Calamity jane plays a 4 of hearts.
It's Robotnick's turn.
Robotnick plays a queen of diamonds.
Nikola gets the trick.
It's your turn.
Nikola plays a 6 of spades.
It's Calamity jane's turn.
Calamity jane plays a 3 of hearts.
It's Robotnick's turn.
Robotnick plays a jack of diamonds.
Nikola gets the trick.
It's your turn.
Nikola plays an ace of hearts.
It's Calamity jane's turn.
Calamity jane plays a 2 of hearts.
It's Robotnick's turn.
Robotnick plays a 10 of diamonds.
Nikola gets the trick.
It's your turn.
Nikola plays a 9 of hearts.
It's Calamity jane's turn.
Calamity jane plays an ace of diamonds.
It's Robotnick's turn.
Robotnick plays an 8 of diamonds.
Nikola gets the trick.
It's your turn.
Nikola plays an 8 of hearts.
It's Calamity jane's turn.
Calamity jane plays a 9 of diamonds.
It's Robotnick's turn.
Robotnick plays a 6 of diamonds.
Nikola gets the trick.
It's your turn.
Nikola plays a king of diamonds.
It's Calamity jane's turn.
Calamity jane plays a 7 of diamonds.
It's Robotnick's turn.
Robotnick plays a 4 of diamonds.
Nikola gets the trick.
It's your turn.
Nikola plays a 6 of hearts.
It's Calamity jane's turn.
Calamity jane plays a 5 of diamonds.
It's Robotnick's turn.
Robotnick plays a 3 of diamonds.
Nikola gets the trick.
End of round.
Congratulations, you have shot the sun!
Nikola loses 26 points.
Calamity jane gets 26 points.
Robotnick gets 26 points.

Scores:
Nikola: -26.
Calamity jane: 26.
Robotnick: 26.

Next round in 15 seconds.
However, to explain where the conflict is: If I played my six of hearts when I had two cards instead of the king of diamonds, the round would end and I would not be able to achieve this since all tricks with points would have been played. I hope it is more clear now. As always, I will try to give more precisions if necessary. This game was with 3 players, but I assume the same is the case with 4, just it's really hard to test some bugs with bots and give a clear history.

Aminiel, I think you worked too much today :) the rule is already implemented on the Playroom, perhaps you just forgot about it.

I have totally forgot about it, thanks !
So clearly I need to fix.

And update the rules as well.

Rules have been updated in french and English.

While testing this rule, I have also discovered one more thing. Have you noticed that in Hearts, restarting the game does not work so well with bots? Especially if you do it after the discard phase is complete, and when the two of clubs has been played. If you restart the game, it seems as though it is not restarted, since if you press the number 1 two of clubs will be on the table, and often bots will try to play their turns even though they are supposed to discard. After the trick is over, you get
Error #33033 ! Si le problème persiste, veuillez quitter cette table et en recréer une nouvelle / If the problem keeps happening, please leave this table and recreate a new one
After this happens, you indeed must create a new table. In my testing, this did not seem to happen with human players, only if bots are involved. I can send the game history on f9 if you think that will help you more.

The next server update will contain a fix that will allow you to try shooting the sun, if you already have shot the moon.

For your second bug, it seems to happen only when you are reopening and restarting the game too fast. So it isn't that important.