I knew at the start there is dependency cycle, I wrote about it at the start. My point is "if we take off the wheel it shouldn't push the car"))

I hopped it's possible to change behavior of blender working with off constraints. Because logic tell the user that switched off constraint shouldn't influence on rig and there is shouldn't be dependency till it on. May be Blender use ancient constraints system... At least Blender should have "Switcher" constraint or dynamic parent like in Maya.

Looks like Blender has big problem with scale. SplineIK, Stretch To - completely unusable and useless for export. No controlled ropes, no controlled tails. Rigify due this issue is also damaging bones and corrupt animation. It's sad that fundamental issues does not resolving for so long time. Where is Animation 2020?)
Blender can not handle standard animation tricks. I think there is no place for new features until so big issues will be resolved.

@Campbell Barton (campbellbarton) Could you please add Separate feature which I describe above. I forgot to ask you about this earlier because most of the time I using 2.83 in studio.

@Campbell Barton (campbellbarton) Thanks a lot for adding this features! This is exactly what I was missing. If it possible would be awesome to get notifications after command proceeded.

In T74157#1001622, @Raimund Klink (Raimund58) wrote:

And there is no "Save Preferences". Why? Auto-save preferences is not a solution for me because I am experimenting all the time...

@Aleksandr (viadvena)
And what is this?

W means Workflow.

System Information
Operating system: Linux-4.15.0-109-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 435.21

T76447 - New phase of this bug

In T75477#906201, @Germano Cavalcante (mano-wii) wrote:

Interestingly, the glitch follows a regular pattern that resembles the texture used to indicate alpha.
@Aleksandr (viadvena), could you provide a simple file showing the problem?

In T74460#885660, @Brecht Van Lommel (brecht) wrote:

I'll consider this resolved then, the fix for this may be included in 2.82a.

In T74460#885640, @Brecht Van Lommel (brecht) wrote:

Please verify if the issue still exists in 2.83, there have been various pose brush bugfixes after the 2.82 release:
https://builder.blender.org/download/

System Information
Operating system: Linux-4.15.0-88-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 435.21

@Paolo Acampora (pkrime) Thank you, sir! Now it's working from text editor. Unwanted scale still there after exporting but now I can just delete all scale keys and distortion gone. Hierarchy much better but there is still ORG Spine bones. I hope this things will be fixed soon and your addon will be perfect. And it would be awesome seeing it inside Rigify toolbar natively in Blender master.
I think your addon need thread on Blender Artists, not everybody reach this place) Thank you for your work!

@Paolo Acampora (pkrime) Hello! Thank you for your attention, but may be I am too slow or too tired but: I deleted old version of script and install new one but no sign of life in the list of addons. Blender just said that he is copied script in my config folder(( I am sorry that I still bringing not successful news.

Could you Please refresh this script for 2.81? I am stuck: when I exporting rigify there is damn distortion only in fbx, in original scene all just fine. I tried many ways but no luck((( And fbx only deform doesnt work with rigify - a lot of ORG bones in fbx file.

@Ivan Cappiello (icappiello) Doesn't work at all :(( Could someone to refresh this addon? I completely rip my brain to try figure this rig out all night and day long... This mystic thing make me crazy: I tried bake everything and reassign parents, manual delete all helper bones etc.... and this damn stretch still there forever only after exporting.

Same trouble in 2.81. + there is another issue: when I am exporting in fbx (only deform bones) in fbx file a lot of ORG bones. Have you guys have some idea how I can fix my rig or I need to make everything from scratch?

System Information
Operating system: Linux-4.15.0-70-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 435.21

In T71533#810159, @Antonio Vazquez (antoniov) wrote:

This script fix the file:

import bpy

for ob in bpy.data.objects:
    if ob.type == 'MESH':
        for slot in ob.material_slots:
            bpy.data.materials.remove_gpencil_data(slot.material)

In T71533#810151, @Antonio Vazquez (antoniov) wrote:

@Aleksandr (viadvena) While we found the solution to the bug, you can recover your material running these lines in console:

ma = bpy.context.active_object.material_slots[0].material
bpy.data.materials.remove_gpencil_data(ma)

Also I can assume that it's happens only with procedural materials without image textures. And used Annotation tool with draw mode above meshes. It's just happens and unfortunately I can not say more. At some moment I just noticed it.

I picked blendfile before with corrupted object. Here I pick actual scene where all started.

Same trouble in T71533 in 2.81. Guys, it's really should be high priority. All workflow going down with this bug...

I tried out on factory settings and it works. Probably troubles in exported settings from 2.80. Sorry about that! Please close this task.

I solved this problem by saving new input preset in preferences in 2.80. I didn't thought about this before. Quick Favorites lost at all.

Thank you!

But I customized 2.80 for a long time from factory settings. Could you explain me please how I can to import my big blender input list to 2.81?

Looks like in RC3 this is not appear anymore

System Information
Operating system: Linux-4.15.0-54-generic-x86_64-with-debian-stretch-sid 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.56

All the same... Alt+Z = working bad, X-Ray in interface - working well. Try to switch on both of this: alt+z and press button from top bar and vice versa.
Looks like blender have 2 X-Rays.

In T64990#685364, @Jacques Lucke (JacquesLucke) wrote:

I don't think this is a bug currently, that is just how it works for now.

I installed driver version 418.56 and my tests does not provocative any crashes now. Looks like now it runs very well. Thanks a lot for help!

In T64040#669691, @Sebastian Parborg (zeddb) wrote:

I can not reproduce this on my end. Could you try the latest blender beta?