When zooming, it loads one processor core by 100 percent, it works jerkily when scrolling the mouse wheel 9.0.1-rc2-6-g81914c846f
Most operations that cause slowdown are going to take a single core to 100%. This is inevitable when a single thread is blocking
I donāt understand that it is inevitable but such behavior of the board editor is absent in version 8-9.0 zoom works adequately
dsa-t
A small question about importing boards from Altium. In version 8, when exporting, if the step models have the same name, they were not displayed in 3D viewing; you could unload them and change the name to the desired one, then they appeared. In version 9, if I unload them, models with the same name do not appear in the list, or I did not find where to do this? I attach the board file. 9.0.1-rc2-6-g81914c846f
What does it mean to āunloadā? Which list?
Export 3D models from the board file to a separate folder
How did you do that in 8.0?
In version 8, when exporting a board from Altium, 3D models were saved in a separate folder. In this folder, in models with the same name, I changed the name and they appeared in 3D viewing. In version 9, this does not happen (all models are built into the board file). To unload them, there is an export. I click on it, but there are no files with repeated names.
Why do you export them? You can embed (or place on the filesystem) the other models with different names and replace the link in footprints.
Some of the models in the Altium board file have the same names, how can I convert them to Kikad? How can I unload them to edit the name? I donāt have other models all models are in the Altium board file
Create an issue on GitLab about handling duplicate model filenames.
Would be great if you could put more descriptive titles. And follow the default template with Description, Steps to reproduce and Version headers. And put version info inside triple backticks (```). Instead of wasting devsā time to edit it.
Did you know Help ā Report Bug fills the version info automatically and uses a correct template?
Since you closed both requests, I described the problems quite accurately. Iāll wait until there are more requests in version 9.0.1, as you understand, they are not fixed, and some are already more than 5 years old, endless writing with filling in without results, forgive me, but I donāt need thanks!
I think Kicad is agonizingly close to where it needs to be in terms of community support, but, not quite there yet. 
It is advisable to find a tester and judging by the gitlab they offer their services instead of this endless patches with the closure of the main branches with the presence of bugs as a result of the 8 branch was closed with bugs they moved to 9 and more were added IMHO
If you want V8 to stay open until all bugs are fixed we will never get V9, V10, etc.
Some bugs effect so few people under such edge user cases and can take a disproportionate time to fix and test (across 3 very different OSes) that often the pragmatic thing to do is to push them into the next release to be fixed, if possible.
All users need to be a little tolerant and patient especially for software that they donāt pay for and that is mostly maintained and developed by people giving up their free time with no monetary reward.
You always have options, if you donāt want to suffer the new bugs introduced in V9 stay on V8 . . .
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What is the point of closing an unfinished branch? The user has two options: to work with old errors or with new and old ones together. Software is made for users and not for programmers, otherwise there is no point in it. There are more than 1700 open issues on the tracker, is that not enough? Then the question is, where does the donation go every year? Isnāt it to pay the developers? If they donāt get anything, then there is no point in donating.
Alternate Donation Option
The Linux FoundationĀ®
Donating to KiCad via The Linux Foundation provides funds for project development and the developers behind it. Donations are accepted via credit card and purchase order (US$ only). The Linux Foundation is a 501(c)(6) non-profit organization in the US.