Under the button to report the question, specify a wrong website, as shown in the screenshot.
Point to Https://aka.ms/snapshotbugs?ref=game
The field "snapshot" is a misspelling that causes this issue to occur when the client enables "next major update" (1.20 packet) for 1.19.4 (another screenshot).
MC-261882
Under the button to report the question, specify a wrong website
Resolved
Invalid
0
Cannot confirm, resolves to https://bugs.mojang.com/projects/MC/summary