Had this happen on my Vanilla 1.17.1 Realm while working on an automated farm in the End dimension. Seemingly it got triggered by me reverting to a world backup. Attempts to revert further back didn't fix it though. This server is about a year and a half old now.
Total shot in the dark here but you know how when you're using a portal (Nether or End) you're briefly in this in-between space where it's always raining? That's at least what happens to me. Maybe the permanent rain ends up affecting the bees.
Had this happen on my Vanilla 1.17.1 Realm while working on an automated farm in the End dimension. Seemingly it got triggered by me reverting to a world backup. Attempts to revert further back didn't fix it though. This server is about a year and a half old now.
Total shot in the dark here but you know how when you're using a portal (Nether or End) you're briefly in this in-between space where it's always raining? That's at least what happens to me. Maybe the permanent rain ends up affecting the bees.