diff --git a/package.json b/package.json
index a0822ed2..dc3c78f8 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-    "version": "1.12.1-pre2",
+    "version": "1.12.1-pre3",
     "preview": false,
     "activationEvents": [
         "onDebugResolve:cortex-debug",
diff --git a/src/backend/mi2/mi2.ts b/src/backend/mi2/mi2.ts
index 9e63fd60..614105df 100644
--- a/src/backend/mi2/mi2.ts
+++ b/src/backend/mi2/mi2.ts
@@ -973,8 +973,8 @@ export class MI2 extends EventEmitter implements IBackend {
     }
 
     public static getThreadFrameStr(threadId: number, frameId: number): string {
-        const th = threadId > 0 ? `--thread ${threadId} ` : '';
-        const fr = frameId >= 0 ? `--frame ${frameId}` : '';
+        const th = ((threadId !== undefined) && (threadId > 0)) ? `--thread ${threadId} ` : '';
+        const fr = ((frameId !== undefined) && (frameId >= 0)) ? `--frame ${frameId}` : '';
         return th + fr;
     }
 
diff --git a/src/gdb.ts b/src/gdb.ts
index 1d0b11e6..b016efa9 100755
--- a/src/gdb.ts
+++ b/src/gdb.ts
@@ -1891,9 +1891,9 @@ export class GDBDebugSession extends LoggingDebugSession {
             const isReg = (varRef >= HandleRegions.REG_HANDLE_START && varRef < HandleRegions.REG_HANDLE_FINISH);
             const globOrStatic = !isReg && this.getFloatingVariable(varRef, name);
             if (isReg) {
-                const varObj = await this.miDebugger.varCreate(varRef, '$' + name, '-', '*');
-                name = varObj.name;
                 [threadId, frameId] = decodeReference(varRef);
+                const varObj = await this.miDebugger.varCreate(varRef, '$' + name, '-', '*', threadId, frameId);
+                name = varObj.name;
             } else if (globOrStatic) {
                 name = globOrStatic.name;
             } else if (varRef >= HandleRegions.VAR_HANDLES_START) {
@@ -1908,7 +1908,7 @@ export class GDBDebugSession extends LoggingDebugSession {
                 [threadId, frameId] = decodeReference(varRef);
             }
             const res = await this.miDebugger.varAssign(name, args.value, threadId, frameId);
-            // TODO: Need to check for errors
+            // TODO: Need to check for errors? Currently handled by outer try/catch
             response.body = {
                 value: res.result('value')
             };
@@ -2662,7 +2662,7 @@ export class GDBDebugSession extends LoggingDebugSession {
                         if (isFloating) {
                             varObj = await this.miDebugger.varCreate(parentVarReference, symOrExpr, gdbVarName);
                         } else {
-                            varObj = await this.miDebugger.varCreate(parentVarReference, symOrExpr, gdbVarName, '*', threadId, frameId);
+                            varObj = await this.miDebugger.varCreate(parentVarReference, symOrExpr, gdbVarName, '@', threadId, frameId);
                         }
                         const varId = this.findOrCreateVariable(varObj);
                         varObj.exp = symOrExpr;