If any fix command uses "group-ID" containing EPS or DEAD type, make sure such "group-ID" is specified in fix nufeb/eps_extract or fix nufeb/death/diameter. Otherwise, the corresponding EPS or DEAD atoms cannot be recognized by the fix. For example:
#type 2 (eps) is assigned into two groups
group het type 1
group eps type 2
group mix 1 2
#only group "eps" is specified in fix nufeb/eps_extract, secreted EPS will not be assigned to `mix` group
fix eps_ext het nufeb/eps_extract 2 eps .....
If any fix command uses "group-ID" containing EPS or DEAD type, make sure such "group-ID" is specified in fix nufeb/eps_extract or fix nufeb/death/diameter. Otherwise, the corresponding EPS or DEAD atoms cannot be recognized by the fix. For example: