If you need to reinstall Analog Lab 3, you can get it via the resources page:
https://www.arturia.com/products/analoglab/resources
Click the Show Archives button under Analog Lab, and it will show the installers for all previous versions.
I was able to install AL2 and 3 simultaneously with no problems, but I don't know whether there would be any issues doing the same with AL3 and 4.
Arturia Analog Lab 4 - few presets added
- KVRian
- 665 posts since 1 Jan, 2018
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- KVRist
- 320 posts since 2 Aug, 2006
In Ableton it just has the empty box and the indication 3 is gone ( even though its actually still in the vst folder)
oh well updating while stoned will I never learn