[SalesForce] Record Type ID: this ID value isn’t valid for the user – not working in lightning but working in classic

Hi I have faced the same problem so this is what i did

check for the lookup field permission on the child object (It needs to be atleast read) in classic we are able to see the related list irrespective of the fact if child object lookup field has access or not but in lightning only those related list will show up whose child object lookup field has atleast read access

What you want are lightning mass actions, which aren't available and currently slated for "future" release on the roadmap. You can achieve the same result by developing a basic Visualforce page with an extension class, configure a list button, and add the button to the object's list views Search Layout setting. For the "accept" scenario, you would first write an apex class like:

public class CaseAcceptOwnershipExtension {
     PageReference cancel;
     Case[] cases;
     public CaseAcceptOwnershipExtension(ApexPages.StandardSetController ctrl) {
          cases = (Case[])ctrl.getSelected();
          cancel = ctrl.cancel();
     }
     public PageReference updateCases() {
          for(Case c : cases) {
               c.OwnerId = UserInfo.getUserId();
          }
          update cases;
          return cancel.setRedirect(true);
     }
}

Then you'd write an empty Visualforce page that calls the apex class to execute the logic:

<apex:page standardController="Case" recordSetVar="cases"
           extensions="CaseAcceptOwnershipExtension" action="{!updateCases}"></apex:page>

Once you have finished coding, go to Setup | Customize | Cases | Buttons, Links, and Actions and click New Button or Link. Configure a List Button with checkboxes enabled, Content Source set to Visualforce, and select the Visualforce page you created for the Content. Click Save. Then go to Setup | Customize | Cases | Search Layouts and edit Cases List View to include your new button.

You will now see the button available for Case list views in Lightning Experience.

Please keep in mind that the above code will execute irrespective of user permissions and security. To include security checks like record accessibility and user permissions, use the below class:

public with sharing class CaseAcceptOwnershipExtension {

    PageReference cancel;
    Case[] cases;

    public CaseAcceptOwnershipExtension(ApexPages.StandardSetController ctrl) {
        // Return the list of sObjects that have been selected
        cases = (Case[])ctrl.getSelected();
        cancel = ctrl.cancel();
    }    

    public PageReference updateCases() {
        // Check if running user has "Transfer Record" permission
        List<PermissionSetAssignment> psa = [SELECT Id, AssigneeId, PermissionSet.IsOwnedByProfile
                                             FROM PermissionSetAssignment
                                             WHERE (PermissionSet.PermissionsTransferAnyEntity = true OR 
                                             PermissionSet.PermissionsTransferAnyCase = true)
                                             AND Assignee.IsActive = true AND AssigneeId =: UserInfo.getUserId()];
        // Create a map of Ids for the selected records
        Map<Id,Case> casesSelected = new Map<Id,Case>([SELECT Id FROM Case WHERE Id =: cases]); 
        System.debug('=== all keys in the map: ' + casesSelected.keySet());
        System.debug('=== all values in the map (as a List): ' + casesSelected.values());                
        // Any queue members or users higher in a role hierarchy can take ownership of records in a queue
        Map<Id,UserRecordAccess> ura = new Map<Id,UserRecordAccess>();
        for(UserRecordAccess a : [SELECT RecordId
                                  FROM UserRecordAccess
                                  WHERE UserId =: UserInfo.getUserId() 
                                  AND RecordId IN: casesSelected.keySet() AND HasTransferAccess = true]) {
            ura.put(a.RecordId, a);
        }
        System.debug('=== all keys in the map: ' + ura.keySet());
        System.debug('=== all values in the map (as a List): ' + ura.values());
        // If user has "Transfer Record/Case" permission OR HasTransferAccess = true, then update OwnerId                                              
        for(Case c : cases) {
            if(psa.size()>0 || ura.containsKey(c.Id)) { 
                // Assign OwnerId to running user's userId
                c.OwnerId = UserInfo.getUserId();
                c.Status = 'Accepted';
            }            
        }
        // DML operation outside of for loop
        update cases;
        // Navigate back to list view and not display the visualforce page
        return cancel.setRedirect(true);
    }

}