Bosch SGI49A55 / 35 dishwasher. - White residue on dishes after washing

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Bosch SGI49A55 / 35 dishwasher.
Technically efficient. Jonit works, water in the dishwasher 0dH. Unrestricted arms are spinning. Temperatures look OK. 3 years ago, the water handle was replaced and in addition "just in case" micro switch (BSH service). Water level - covers the bottom - but only covers the corners, there is no depth.

I use salt, Finish rinse aid, Finish classic tablets.
The last few dozen wash on a car (55-65C) and 50C problematic. Sometimes unwashed dishes and covered with a white precipitate after removal. Rough surface of dishes. The sediment descends after manual dishwashing using a manual dishwashing liquid. It also helps to "wash" again without detergent on the 35C program - very good effect.

What could it be ? What to check
.

Perhaps the washing water pressure from the pivot arms is weakly clogged with a water stone, etc. Was it good before? and did you also use these detergents?

I use Finish for a long time. As soon as the problem appeared, I descaled the dishwasher just in case (although I always had salt in the container and 0dH), I checked the patency of the pipes supplying water to the arms and the shoulders themselves.

I don't remember how it was before, but now the stream of water from the lower arm reaches the base of the upper basket, and the one from the upper arm beats the vault - as there are no dishes. [/ Syntax]

Instead of tablets, use powder.

Thanks for the advice, I'll try.
Except that for 13 years I used these Finish tablets interchangeably with Somat and everything was OK, until suddenly something broke.
I want to find the reason.


March 13 edition
I checked the powder instead of the tablet.
A small change in favor, though the sediment remains.

March 25 edition
it looks like the gray residue is an excess of rinse aid that has remained on the glass. I think the rinse aid dispenser has fallen, which is not repetitive, but "as desired". The knob rotates completely without resistance even to off-scale position.
After starting several washes without rinse aid but with all-in-one tablets looks good.
I wonder for how long ...