Describe the bug

This message is always popping up in our Console feed.

[12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.

How to reproduce the bug

Not sure how to reproduce this bug as it happens in Console.

Expected behavior

All I can say is it pops on console very regularly.

Additional details

Running 1.8.0 Stoneblock 3.

Which minecraft version are you using?

1.18

On which mod loaders does it happen?

Forge

Crash log

[12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing. [12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing. [12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing. [12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing. [12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing. [12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing. [12:24:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.

Also we are running arclight, didn't have that option.

Besides the log-message, do you observe any missing items?

[12:46:40 INFO] [BuycraftX]: Fetching all due players...
[12:46:40 INFO] [BuycraftX]: Fetched due players (0 found).
[12:47:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:47:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:47:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:47:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:47:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:47:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.
[12:47:26 WARN] [AE2:S]: Cannot deserialize generic key from {} because key '#c' is missing.

Not sure if it's a conflict with BuycraftX?

Besides the log-message, do you observe any missing items?

Not that I'm aware off. There's a few players that play. Ranging from 5 - 20 players at a time.

Then there's not really something we can do about this. We've fixed some cases of this warning in future versions already (where it was printed in error).
This may also come from addons, mind... not necessarily AE2 core.