diff --git a/src/main.zig b/src/main.zig
index 0833ad198..cb027225e 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -76,6 +76,7 @@ pub const Window = struct {
 			std.log.err("GLFW Error({}): {s}", .{errorCode, description});
 		}
 		fn keyCallback(_: ?*c.GLFWwindow, key: c_int, scancode: c_int, action: c_int, mods: c_int) callconv(.C) void {
+			_ = mods;
 			if(action == c.GLFW_PRESS) {
 				inline for(@typeInfo(@TypeOf(keyboard)).Struct.fields) |field| {
 					if(key == @field(keyboard, field.name).key) {
@@ -96,7 +97,6 @@ pub const Window = struct {
 					}
 				}
 			}
-			std.log.info("Key pressed: {}, {}, {}, {}", .{key, scancode, action, mods});
 		}
 		fn framebufferSize(_: ?*c.GLFWwindow, newWidth: c_int, newHeight: c_int) callconv(.C) void {
 			std.log.info("Framebuffer: {}, {}", .{newWidth, newHeight});
@@ -129,10 +129,13 @@ pub const Window = struct {
 			ignoreDataAfterRecentGrab = false;
 			currentPos = newPos;
 		}
-		fn glDebugOutput(_: c_uint, typ: c_uint, _: c_uint, severity: c_uint, length: c_int, message: [*c]const u8, _: ?*const anyopaque) callconv(.C) void {
-			if(typ == c.GL_DEBUG_TYPE_ERROR or typ == c.GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR or typ == c.GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR or typ == c.GL_DEBUG_TYPE_PORTABILITY or typ == c.GL_DEBUG_TYPE_PERFORMANCE) {
+		fn glDebugOutput(_: c_uint, _: c_uint, _: c_uint, severity: c_uint, length: c_int, message: [*c]const u8, _: ?*const anyopaque) callconv(.C) void {
+			if(severity == c.GL_DEBUG_SEVERITY_HIGH) {
 				std.log.err("OpenGL {}:{s}", .{severity, message[0..@intCast(usize, length)]});
-				@panic("OpenGL error");
+			} else if(severity == c.GL_DEBUG_SEVERITY_MEDIUM) {
+				std.log.warn("OpenGL {}:{s}", .{severity, message[0..@intCast(usize, length)]});
+			} else if(severity == c.GL_DEBUG_SEVERITY_LOW) {
+				std.log.info("OpenGL {}:{s}", .{severity, message[0..@intCast(usize, length)]});
 			}
 		}
 	};
diff --git a/src/network.zig b/src/network.zig
index 3dc03af40..f20a9768c 100644
--- a/src/network.zig
+++ b/src/network.zig
@@ -1053,7 +1053,10 @@ pub const Protocols: struct {
 				type_itemStackCollect => {
 					const jsonObject = json.parseFromString(main.threadAllocator, data[1..]);
 					defer jsonObject.free(main.threadAllocator);
-					const item = try items.Item.init(jsonObject);
+					const item = items.Item.init(jsonObject) catch |err| {
+						std.log.err("Error {s} while collecting item {s}. Ignoring it.", .{@errorName(err), data[1..]});
+						return;
+					};
 					game.Player.mutex.lock();
 					defer game.Player.mutex.unlock();
 					const remaining = game.Player.inventory__SEND_CHANGES_TO_SERVER.addItem(item, jsonObject.get(u16, "amount", 0));
diff --git a/src/renderer.zig b/src/renderer.zig
index 0c221e012..66db3dbd6 100644
--- a/src/renderer.zig
+++ b/src/renderer.zig
@@ -795,10 +795,8 @@ pub const MeshSelection = struct {
 				@intToFloat(f32, voxelModel.maxZ)/16.0
 			);
 
-			c.glLineWidth(2);
 			c.glBindVertexArray(cubeVAO);
-			c.glDrawElements(c.GL_LINES, 12*2, c.GL_UNSIGNED_BYTE, null);
-			c.glLineWidth(1);
+			c.glDrawElements(c.GL_LINES, 12*2, c.GL_UNSIGNED_BYTE, null); // TODO: Draw thicker lines so they are more visible. Maybe a simple shader + cube mesh is enough.
 		}
 	}
 };