The player cannot use spawn eggs on spawner minecarts to change their respective entity type they summon like normal spawners.
Steps to Reproduce:
Place down a rail block
Fly directly above the rail block
Run the following command:
/summon minecraft:spawner_minecart ~ ~ ~
Right click the spawner minecart with any spawn egg
Observed & Expected Results:
❌ - The player's arm will swing as if they are using the spawn egg item, but nothing will happen to the spawner minecart, and it will remain empty.
✔ - The spawn egg would successfully be used on the spawner minecart, and the entity type would change.
Screenshots/Videos:
[media]
Notes:
This is inconsistent when compared to other spawner blocks such as the monster spawner, or trial spawner.
Linked issues
is duplicated by 2
relates to 1
Attachments
Comments 25
Reopening as it works on normal spawners, and thus is expected to also work on spawner minecarts.

20w06a affected
Affects 1.16 Release Candidate 1
Relates to MC-65065

Still an issue in 22w46a
Can confirm in 1.20.3. Requesting ownership of this issue as the original poster has been inactive for 3 years.
Can confirm in 1.20.4 Release Candidate 1
Spawner minecart isn’t used in game and probably won’t be used, so mahjong won’t fix that until they remind about this item
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