HI,

I have a question here for the community and devs,
Is it normal/realistic to have the LNAV do squiggly zig zag lines, double turns and etc., and extremely tight physically impossible turns right after takeoff? (I'm pretty sure not..)
Also after it draws and plans idiotic tight turns, it fails to follow them and turns 360 degrees, goes back to the previous waypoint and keeps missing the turn and circling.
Attached is an image of what I saw, these stuff happen all the time and modifying speed constraints sometimes fixes it, but yet there are un-explaned random turns like at SDV, why does it point out a bit between SDV and XIBUS? that turn can easily be taken.
And again, what is the zig zag on final? why can't it just draw a straight line and with what calculations does it get to this result?
if I set speed 200 knots at TOMOS the lines get straight, but if i set 200 knots at LALTO too the zig zags come back,

With another VIA, which was right at the blue 10 marker on the screenshot, it would go from LALTO to "10" and then back to TOMOS in such a stupid curve that it wanted to do a 15 mile wide turn followed by a stand still 290 degree turn and then back to TOMOS for a misaligned path,

literally makes zero sense and it's just god f***g awful to release an aircraft like this and not fix these base type of stuff after a year,
complete disappointment.

I have seen similar behavior on the GIP28 arrival into LSZH - between ZH449 and ZH457, it created a similar set of bizarre S-turns.

Exactly, I keep getting this and as a matter of fact the instant 360 turn departure happend at Zurich today.