Display the ref output of an enumlist don't show up

[baba_sawane]

It's a virtual column formula that should show the output of an enumlist. 

When I select 1 value, it shows the output as intended.

When I select two or more values, the output disappear 😮

I tried different formulas but sometimes it don't even show up no matter if I select one or more values. 

The number of rows at the right of the column name does change, so it's a display issue.

I tried : 

filter("Dossier EGC",contains([Nom du fichier], [Documents liés]))

Select(Dossier EGC[Nom du fichier],IN([_THISROW].[Documents liés], Dossier EGC[Nom du fichier]))

(Dossier EGC[Nom du fichier] - unique(Dossier EGC[Nom du fichier] - [Documents liés]))

INTERSECT([Documents liés], Dossier EGC[Nom du fichier])

This is how my list is set up :

[Marc_Dillon]

How is the Documents liés column defined? Is it an EnumList-Ref to Dossier EGC? If so, your VC expression is as simple as [Documents liés]

[baba_sawane · Accepted solution]

Thanks for the answer, Marc.

Thanks to your reply, I realised that my formula should ref the key column, which was not the case.