A trend line is behaving strangely.

Dear @Hiroshi Harayama,

Thank you for your detailed explanation.

I tested the issue in your project using Google Chrome on Windows, but unfortunately, I was unable to reproduce it. After holding down the Shift key to draw a horizontal trend line, I could still draw trend lines at any angle without any problems.

Based on your description, I suspect that the Shift key might remain active even after you release it. This could be related to your keyboard, Windows accessibility settings, or how Google Chrome processes keyboard input.

Could you please try the following troubleshooting steps?

1. Check whether the Shift key remains active

• Open Forex Tester Online in Google Chrome.

• Select the Trend Line tool and hold down Shift to draw a horizontal line.

• Release Shift and try drawing another trend line at a different angle.

• If the line remains horizontal, press and release both Shift keys (left and right) several times.

• Try drawing another trend line.

Does pressing Shift again restore normal behavior?

2. Check Windows Sticky Keys and Filter Keys settings

Windows has accessibility features that can affect how modifier keys such as Shift behave.

• Open Windows Settings → Accessibility → Keyboard.

• Make sure Sticky Keys and Filter Keys are turned OFF.

• If Sticky Keys is already disabled, please also check whether its keyboard shortcut (pressing Shift five times) is enabled. If so, temporarily disable it.

• Restart Google Chrome and test again.

3. Check whether Windows detects the Shift key correctly

You can use the built-in Windows On-Screen Keyboard to check this without installing any additional software.

• Press Windows + R.

• Type osk and press Enter.

• The Windows On-Screen Keyboard will appear.

• Keep it visible while testing the Trend Line tool in FTO.

• Hold down Shift on your physical keyboard and check whether Shift is highlighted on the On-Screen Keyboard.

• Release the physical Shift key and check whether the highlight disappears.

If Shift remains highlighted after you release it, this could indicate a keyboard input or Windows configuration issue.

4. Test another browser

Please try opening the same FTO project in Microsoft Edge and repeat the test.

If the problem occurs only in Google Chrome, it could be related to Chrome's keyboard input handling or a browser extension.

You can also test Chrome in Incognito mode (Ctrl + Shift + N), preferably with extensions disabled.

5. Check the Japanese keyboard layout

Since you may be using a Japanese keyboard layout, I would also like to rule out a possible keyboard layout or input method compatibility issue.

If you are using Microsoft Japanese IME, please temporarily switch to an English keyboard layout (if available) and repeat the test.

This will help us determine whether the issue is related to Japanese keyboard input processing.

6. Try another keyboard (if available)

If you have an external USB keyboard, please try using it to see whether the problem persists.

There is no need to install any keyboard recording software.

Please let me know the results, particularly:

1. Does pressing and releasing Shift again resolve the issue?

2. Does the On-Screen Keyboard show that Shift remains pressed after you release it?

3. Does the same issue occur in Microsoft Edge?

4. Does changing the keyboard layout make any difference?

These details will help us determine whether the issue is caused by keyboard input handling or something within Forex Tester Online that our developers need to investigate.

Thank you for your patience and cooperation.