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empiricaly / meteor-empirica-core

Core Meteor package for the experiment Empirica platform. This is where you should submit issues.
MIT License
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Players are sent to gameFull when they should be sent to the next batch #255

Closed Karakaii closed 3 years ago

Karakaii commented 3 years ago

I am running a big multiplayer study where I need many people to come in at the same time to form groups. To make sure my groups fill in and that I don't get games that half fill and then fail at the lobby, I open multiple batches, each with a game of the same treatment. Once the first batch is complete, participant are sent to the next one. However, in that process, I get a few participants who are sent to gameFull instead of the next batch.

Karakaii commented 3 years ago

Hello, An update on this. We had 1383 participants, 92 were sent to gameFull. Whilst this is small percentage, a gameFull should not have occurred.

For most of the participants we didn't have a special timing. People just came in from the recruitment platform. For some of the participants we had a system where we had participants come in at the same time to the consent page (not the lobby itself).

npaton commented 3 years ago

Hey @Karakaii. We have managed to reproduce the issue and are working on a fix. Hopefull out today. 🙌

Karakaii commented 3 years ago

Awesome! Thank you!

npaton commented 3 years ago

@Karakaii Let us know if it does indeed fix your issue. We were pretty convinced we could reproduce it, but it's hard to validate against 100s of players in a real-world situation. 👍