Error while requesting math expression description

### Issue
Error while requesting a description of a math item
```
IO - inputCore.InputManager.executeGesture (17:21:03.172) - winInputHook (8204):
Input: kb(desktop):control+shift+rightArrow
ERROR - mathPres.MathCAT.MathCAT.MathCATInteraction._do_navigate (17:21:03.185) - MainThread (26088):
Traceback (most recent call last):
File "mathPres\MathCAT\MathCAT.pyc", line 159, in _do_navigate
OSError: Internal error: With en/ClearSpeak in Enhanced mode, can't DescribeNext from expression with id 'Mdszbjan-22' inside:

```

### My config
* NVDA 2026.1beta9
* Windows 11 23H2 (AMD64) build 22631.6783