Glenn Stanton

somewhat older article by Noel WRT signal flow. http://www.noelborthwick.com/cakewalk/2014/04/10/know-your-signal-flow/

it may be the zoom function operates too quickly and the number of events to process (rotating the dial or clicking on the +/-) overloads the software which is trying to process everything else. if i operate the controls slowly (+/-) it doesn't seem to happen. same with a single indent of the wheel. if i quickly spin it or click the scoll buttons it goes into the lock up and seems to be trying to scale beyond it's limits and/or has too many operations to attempt.