Custom entity spawn egg does not show up in inventory after update 1.21.60 or 61

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Steps to Reproduce:
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Observed Results:
(Briefly describe what happens)

Expected Results:
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Steps to Reproduce:
1. Create standard custom geometry entity (from bedrock samples), put it into addon, load to minecraft and activate pack.
2. Check if egg show up in player inventory and you can spaw entity by egg (In creative mode).
3. Check if you can give the player spaw egg by using commnad: /give [PlayerName] [pack_namespace]:[entity_name]_spawn_egg

Observed Results:
1. Custom entity crated. Pack loaded and activated.
2. I cant see custom entity spawn egg in player inventory(creative mode - It was before) so I can not take it. (pic1.jpg)
3. I am able to give player custom entity spawn egg by using comand /give. (pic2.jpg and pic3.jpg)

Expected Resultst:

Player should have the ability to grab the egg manulay or using command line.
Please note that before your latest updates everyting was working fine.

As previously requested, please attach the add-on necessary to reproduce the bug to the report.