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Serious Undo problems with 3rd party VST plugins Issue Tools
issueid=3485 08-09-2011 11:07 PM
Human being with feelings
Serious Undo problems with 3rd party VST plugins

Several 3rd party plugins have problems with REAPER's Undo.

Quote:
Originally Posted by Aleksey Vaneev
Moreover, I think there can be problem with Reaper's undo even when you change automatable parameters only.
Quote:
Originally Posted by Aleksey Vaneev
When I move control points 1, 2, etc that are automated, the Reaper's undo does not always follow these changes.
Quote:
Originally Posted by Aleksey Vaneev
The idea is simple - it's a bug of some kind.

http://www.voxengo.com/forum/glisseq/2822


Example:

-> Voxengo Marvel GEQ V1.1 http://www.voxengo.com/product/marvelgeq
-> load it
-> move a fader with the mouse
-> Undo


Result: Plugin unloaded.

Expected: Only revert of the last fader movement!


Very ugly behaviour not to get proper Undo steps for each fader/knob movement. If it's just the timing limit then it definitely should be lowered to "real world" situations!
Issue Details
Issue Type Open Bug
Project Deprecated REAPER issue tracker
Category Plugins
Status Unconfirmed
Priority 3
Affected Version 4.01
Fixed Version (none)
Users able to reproduce bug 3
Users unable to reproduce bug 0
Assigned Users (none)
Tags (none)

08-10-2011 07:20 AM
Administrator
 
Can't duplicate it here with 4.01, moving a fader with the mouse adds an undo point as expected. Can duplicate when moving a fader using mousewheel, however.
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08-10-2011 10:21 PM
Human being with feelings
 
Quote:
Originally Posted by Justin
Can't duplicate it here with 4.01, moving a fader with the mouse adds an undo point as expected.
I can reproduce it all the time in 4.01.


-> add plugin, don't wait too long and move a fader

Result: no undo step for the fader movement created


Waiting a bit between plugin load and fader dragging fixes it. So obviously the timer is set too high.


Quote:
Originally Posted by Justin
Can duplicate when moving a fader using mousewheel, however.
Bug in the plugin, right?
Reply
01-03-2015 12:58 AM
Human being with feelings
 
Confirmed with following plugins in 4.76:

Rea plugs, any tickbox. E.g. 'enabled' in ReaEQ
FabFilter ProQ 2, move a band, undo. Plugin is unloaded.

There is definitely some sort of time-related thing going on. If you wait ~2 seconds before ticking the box for e.g., then undo it works fine.

Related, most likely, to that time issue is the fact that an undo will guarantee-ably remove two actions if you undo quickly after the second action. This applies to FX only, other aspects of Reaper undo very responsively and accurately, such as creating new tracks or deleting items.
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