diff --git a/app/src/protyle/markdown/mathRender.ts b/app/src/protyle/markdown/mathRender.ts
index bb296ff37..45ad6208a 100644
--- a/app/src/protyle/markdown/mathRender.ts
+++ b/app/src/protyle/markdown/mathRender.ts
@@ -87,7 +87,9 @@ export const mathRender = (element: Element, cdn = Constants.PROTYLE_CDN, maxWid
                                 // 随着浏览器的升级，从 beforeend 修改为 afterend
                                 mathElement.insertAdjacentText("afterend", Constants.ZWSP);
                             }
-                        } else if (nextSibling && nextSibling.textContent !== "\n") {
+                        } else if (nextSibling && nextSibling.textContent !== "\n" &&
+                            // 输入 $a$ 后，光标移动到其他块，再点击 a 后，光标不显示 https://github.com/siyuan-note/insider/issues/1076#issuecomment-1253215515
+                            nextSibling.textContent !== Constants.ZWSP) {
                             // 数学公式后一个字符删除多 br https://ld246.com/article/1647157880974
                             // 数学公式后有 \n 不能再添加  https://ld246.com/article/1647329437541
                             mathElement.insertAdjacentHTML("beforeend", "");