ATR lateral navigation issues

[spottersim]

ISSUE DESCRIPTION

Description of the issue: The aircraft’s lateral navigation does seem not accurate enough. It tends to overshoot turns and does not follow the route accurately. Also, overfly and altitude-terminated legs are not sequenced and drawn correctly.

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)?

Every flight

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

1. Load ATR and set up any complex SID

2. Observe route drawing

3. Observe FD guidance and AP response

MEDIA

[spottersim]

LFMN SODR8B SID, aircraft unable to properly display and sequence FA leg, unable to intercept leg to next waypoint.
Further observation: DTO planned without turn prediction, resulting in overshoot if turn to new track is required.

LFKC SODR2K STAR:
Approaching NORKA, segments of the path disappeared from the route drawing and the aircraft was unable to intercept the leg to SOUKA.