diff --git a/dev/storage/src/model.tx.json b/dev/storage/src/model.tx.json
index 28dd9978d5..f6f4adea5f 100644
--- a/dev/storage/src/model.tx.json
+++ b/dev/storage/src/model.tx.json
@@ -932,7 +932,7 @@
     "_id": "618a9e1165ff379e1b3b8fc7",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fc8",
+    "objectId": "contact:channelProvider:Phone",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,
@@ -947,7 +947,7 @@
     "_id": "618a9e1165ff379e1b3b8fc9",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fca",
+    "objectId": "contact:channelProvider:LinkedIn",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,
@@ -962,7 +962,7 @@
     "_id": "618a9e1165ff379e1b3b8fcb",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fcc",
+    "objectId": "contact:channelProvider:Twitter",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,
diff --git a/dev/tool/src/model.tx.json b/dev/tool/src/model.tx.json
index 28dd9978d5..f6f4adea5f 100644
--- a/dev/tool/src/model.tx.json
+++ b/dev/tool/src/model.tx.json
@@ -932,7 +932,7 @@
     "_id": "618a9e1165ff379e1b3b8fc7",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fc8",
+    "objectId": "contact:channelProvider:Phone",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,
@@ -947,7 +947,7 @@
     "_id": "618a9e1165ff379e1b3b8fc9",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fca",
+    "objectId": "contact:channelProvider:LinkedIn",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,
@@ -962,7 +962,7 @@
     "_id": "618a9e1165ff379e1b3b8fcb",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fcc",
+    "objectId": "contact:channelProvider:Twitter",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,
diff --git a/packages/presentation/src/components/Avatar.svelte b/packages/presentation/src/components/Avatar.svelte
index 0188acb7f3..ab69a72304 100644
--- a/packages/presentation/src/components/Avatar.svelte
+++ b/packages/presentation/src/components/Avatar.svelte
@@ -27,9 +27,9 @@
 <div class="ava-{size} flex-center avatar-container" class:no-img={!url}>
   {#if url}
     {#if size === 'large' || size === 'x-large'}
-      <img class="{size} ava-blur" src={url} alt={''}/>
+      <img class="ava-{size} ava-blur" src={url} alt={''}/>
     {/if}
-    <img class="{size} ava-mask" src={url} alt={''}/>
+    <img class="ava-{size} ava-mask" src={url} alt={''}/>
   {:else}
     <Avatar {size}/>
   {/if}
diff --git a/plugins/chunter-resources/src/components/AttachmentPresenter.svelte b/plugins/chunter-resources/src/components/AttachmentPresenter.svelte
index c36fa69951..c4b3974aba 100644
--- a/plugins/chunter-resources/src/components/AttachmentPresenter.svelte
+++ b/plugins/chunter-resources/src/components/AttachmentPresenter.svelte
@@ -35,13 +35,13 @@
 </script>
 
 <div class="flex-row-center">
-  {#if value.type === 'application/pdf'}
+  {#if value.type.includes('application/pdf')}
     <div class="flex-center icon" on:click={()=> { closeTooltip(); showPopup(PDFViewer, { file: value.file }, 'right') }}>{iconLabel(value.name)}</div>
   {:else}
     <a class="no-line" href={getFileUrl(value.file)} download={value.name}><div class="flex-center icon">{iconLabel(value.name)}</div></a>
   {/if}
   <div class="flex-col info">
-    {#if value.type === 'application/pdf'}
+    {#if value.type.includes('application/pdf')}
       <div class="name" on:click={()=> { closeTooltip(); showPopup(PDFViewer, { file: value.file }, 'right') }}>{trimFilename(value.name)}</div>
     {:else}
       <div class="name"><a href={getFileUrl(value.file)} download={value.name}>{trimFilename(value.name)}</a></div> 
diff --git a/plugins/recruit-resources/src/plugin.ts b/plugins/recruit-resources/src/plugin.ts
index 18b079e7bf..a2dea02bc8 100644
--- a/plugins/recruit-resources/src/plugin.ts
+++ b/plugins/recruit-resources/src/plugin.ts
@@ -27,8 +27,7 @@ export default mergeIds(recruitId, recruit, {
     VacancyRequired: '' as StatusCode,
   },
   class: {
-    Vacancy: '' as Ref<Class<Vacancy>>,
-    Candidates: '' as Ref<Class<Candidates>>
+    Vacancy: '' as Ref<Class<Vacancy>>
   }, 
   string: {
     CreateVacancy: '' as IntlString,
diff --git a/plugins/recruit/src/index.ts b/plugins/recruit/src/index.ts
index 21bccfcbe2..d881803b19 100644
--- a/plugins/recruit/src/index.ts
+++ b/plugins/recruit/src/index.ts
@@ -54,7 +54,8 @@ export const recruitId = 'recruit' as Plugin
 export default plugin(recruitId, {
   class: {
     Applicant: '' as Ref<Class<Applicant>>,
-    Candidate: '' as Ref<Class<Candidate>>
+    Candidate: '' as Ref<Class<Candidate>>,
+    Candidates: '' as Ref<Class<Candidates>>
   },
   icon: {
     RecruitApplication: '' as Asset,
diff --git a/server/front/src/app.ts b/server/front/src/app.ts
index 8932cc28e4..0a38f1b738 100644
--- a/server/front/src/app.ts
+++ b/server/front/src/app.ts
@@ -251,7 +251,7 @@ export function start (transactorEndpoint: string, elasticUrl: string, minio: Cl
             res.status(200).send({
               id,
               contentType,
-              size: data.length
+              size: buffer.length
             })
           }
         })
diff --git a/server/workspace/src/model.tx.json b/server/workspace/src/model.tx.json
index 28dd9978d5..f6f4adea5f 100644
--- a/server/workspace/src/model.tx.json
+++ b/server/workspace/src/model.tx.json
@@ -932,7 +932,7 @@
     "_id": "618a9e1165ff379e1b3b8fc7",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fc8",
+    "objectId": "contact:channelProvider:Phone",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,
@@ -947,7 +947,7 @@
     "_id": "618a9e1165ff379e1b3b8fc9",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fca",
+    "objectId": "contact:channelProvider:LinkedIn",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,
@@ -962,7 +962,7 @@
     "_id": "618a9e1165ff379e1b3b8fcb",
     "_class": "core:class:TxCreateDoc",
     "space": "core:space:Tx",
-    "objectId": "618a9e1165ff379e1b3b8fcc",
+    "objectId": "contact:channelProvider:Twitter",
     "objectClass": "contact:class:ChannelProvider",
     "objectSpace": "core:space:Model",
     "modifiedOn": 1636474385880,