Very Strange Error Occuring with an Ability Macro.

I am playing 5e and using the OGL sheet. I have the following Character Ability. !!NPC Action Menu /w gm &{template:default} {{name=@{selected|character_name} Attacks}} {{[@{selected|repeating_npcaction_$0_name}](~selected|repeating_npcaction_$0_npc_action) [@{selected|repeating_npcaction_$1_name}](~selected|repeating_npcaction_$1_npc_action) [@{selected|repeating_npcaction_$2_name}](~selected|repeating_npcaction_$2_npc_action) }} When I post this directly to the chat, it works.  If I use the 'test' ability button on the abilities editing tab, in the character sheet, it works. If I force it to reference a different character, it works. I can even get it to work by referencing it from a separate macro. If I save the ability and roll it from the sheet it breaks posting: No ability was found for %{Fire Snake|.Atk-Menu} 4:55PM GM Gus (GM): Fire Snake|.Atk-Menu  This only happens with this character/npc.  I have versions of this ability on several different sheets. They all appear to work fine. This problem appears to be occurring exclusively with one NPC or Token.  Very strange.

if you put  %{Fire Snake|.Atk-Menu} in chat, does it work?

Aaron, thanks for the reply!  I fixed (but didn't solve) the issue by deleting the character and importing a copy from one of my other games.  The same macro was working in that game. I was unable to find the cause.