Hello, I have a trigger that is working on the Before Update, but is not working on Before Insert.

The idea is that when a Task is Inserted or Updated,

If the purpose__c = 'Sway Card, and Owner.Userrole contains 'BDM',

then set account.type = 'Suspect'

So as you can see it updates the Account Object, not sure if that has anything to do with it. Also purpose__c is a multi-picklist field. 

Anybody can help me out?

My code is here:  

trigger Task_SWayCard on Task (before insert, before update) {

List<ID> accID = new List<ID>(); //AccountIDs in the trigger
List<ID> ownerID = new List<ID>(); //Task Owners in the Trigger
for (task t : trigger.new)
{
If ( t.purpose__c == 'Sway Cards' )
{accID.add(t.AccountID);}
ownerID.add(t.ownerID);
}

If (accID != null)
{
list<Account> acc = [select id, name, ownerID, type from Account where Id =: accID]; //Accounts from the AccID list
List<User> owner = [select id, name, userrole.name from User where Id =: ownerID]; //Users from the ownerID list
List<User> bdmOwner = [select id, name, userrole.name from user where Id =: owner //Users where name like BDM
and userrole.name like '%BDM'];

List<Account> accToUpdate = [select id, name, type, ownerID from account where ownerID =:bdmOwner
and id =:acc];  //Selects the accounts we want to update

for (Account a : acc)
{
a.type = 'Suspect - Qualified';
update a;
system.debug(a.type);
}
}
}

Thanks!