While mapping jk/jj to esc, typing j and a motion hotkey make the j appear after the motion.

Describe the bug
I have imapped jk to <ESC>, and have some hotkeys like ctrl+a mapped to command cursorHome, ctrl+b to cursorLeft.
Press j and then ctrl+a, the j appears at the start of the line.
That is, the j changes its original location to the location after motion hotkey.
IIRC I don't remember such problem exists before.

To Reproduce

1. add the following lines to user settings.

    "vim.insertModeKeyBindingsNonRecursive": [
        {
            "before": ["j", "k"],
            "after": ["<esc>"]
        }
    ],

add such hotkeys to keybindings.json

    {
        "key": "ctrl+e",
        "command": "cursorEnd",
        "when": "editorTextFocus && vim.active && !inDebugRepl && vim.mode == 'Insert'"
    },
    {
        "key": "ctrl+a",
        "command": "cursorHome",
        "when": "editorTextFocus && vim.active && !inDebugRepl && vim.mode == 'Insert'"
    },
    {
        "key": "ctrl+p",
        "command": "cursorUp",
        "when": "editorTextFocus && vim.active && !inDebugRepl && vim.mode == 'Insert'"
    },
    {
        "key": "ctrl+n",
        "command": "cursorDown",
        "when": "editorTextFocus && vim.active && !inDebugRepl && vim.mode == 'Insert'"
    },

2. Say we have a line println($) ($ is where the cursor now at)
   press j and it becomes println(j$) and waiting for a key.
   Then press ctrl+e to move to end of the line.
   The line becomes println()j$
   The j changes its location.
   Other such hotkeys(ctrl+a, ctrl+p, etc.) all behave like this.

Expected behavior
The line becomes println(j)$ ($ is where the cursor now at) but not println()j$.
I remember I used to play around with the variable j without any problem.

Environment (please complete the following information):

• Extension (VsCodeVim) version: 1.17.1
• VSCode version: 1.49.2
• OS: Version 2004 (OS Build 19041.264)