Syntax error bug

I cannot ALWAYS replicate this - but it seems that after several hours of use the syntax error checker starts to get buggy.

When the issue is happening, I might accidentally click the carriage return (Enter) button on my keyboard BEFORE typing the final semi-colon at the end of a variable declaration line.

This should correctly trigger the Syntax Error.

However, after backspacing or Ctrl+Z (Undo) to add the missing semi-colon, the syntax error never goes away.

Sometime I can get the error to clear itself and display as Valid with the green checkmark by deleting the semi-colon and retyping it again.

This is SOO annoying to work around because I will want to verify that there are no bugs, but cannot trust the error output.

Thank you for addressing this issue.

FYI - I am typing in PHP in a PHP file while encountering this issue.