Custom mailtemplate not loading

[erwin123]

Dear support,

 

This morning I suddenly had a case of a custom mailtemplate not loading for a particular customer.

Other templates loadd fine an it loads for other customers.

 

I select the customer, click 'new message' and then select from the dropdown menu th template.

Nothing happens.

 

As said other templates work and the same template works for other customers.

 

Any idea what could cause this?

 

Thanks