Double check in the system tree - > Policy section, if the custome policies are assigned to group/nodes. If you have already done this, try to run a client task (debug task), get the logs and check for any errors.
In regards to solidcore solidifier there is no standalone or epo license key. The key in ePO defines what features are enabled in ePO and on the Solidifier. If you dont have a key that includes MAC you will not see these option in ePO and you cannot enable MAC on the endpoint. Some things to know are if you system is in recovered state it will not get the updated policies from epo. If you configured updaters with the install script these will be removed when the policy from epo is enforced. Check your policies and rule groups in ePO and always make sure your endpoint is locked down before you enforce your policy or do a wakeup call.