The /execute command doesn't work inside the on_open_commands, on_close_commands or as a button in dialogue json files that are opened with /dialogue. The command works everyhwere else including in a normal NPC dialogue that is configured ingame in creative mode.

Steps to reproduce:

1. Open the attached world
2. Click the button on the command block to open a test dialogue using /dialogue
3. Click the "Execute Test" button in the dialogue

Expected results:

It should say "[NPC] open", "[NPC] button" and "[NPC] close" in chat because "/execute as @s run say ..." should be run when the dialogue opens, when the button is clicked and when the dialogue closes.

Observed results:

The execute commands in the dialogue won't trigger and it won't say "[NPC] open, "[NPC] button" or "[NPC] close" in chat.