Just wondering if anyone else has this issue. When using retriever (either 2 or 3 so it lowers number of tags count) I frequently find myself unable to deploy the EMP. Basically all that happens is you get the notification you've got an EMP and the prompt to press 4 to deploy the EMP but pressing 4 does nothing and the prompt won't go away. Even if you get max nanosuit afterwards and use that it will again prompt you to press 4 to use an emp but you can't.
The only way to get rid of the prompt to use the emp it to die (which again after death still prompts you to use the emp) and then get maximum radar.
Thanks