Here are the details, this is reproducible every time so good for bug finding bad for me
If you switch on Arpeggio and Voicing Lock and hit the play icon after recording in a few notes, it crashes every time
Here are all the versions numbers etc.
Process: Logic Pro X [14075]
Path: /Applications/Logic Pro X.app/Contents/MacOS/Logic Pro X
Identifier: com.apple.logic10
Version: 10.4.8 (5182)
Build Info: MALogic-5182000000000000~3
App Item ID: 634148309
App External ID: 833082327
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Logic Pro X [14075]
User ID: 501
PlugIn Path: /Library/Audio/Plug-Ins/Components/ScalerControl.component/Contents/MacOS/ScalerControl
PlugIn Identifier: com.pluginboutique.ScalerControl
PlugIn Version: 1.8.1 (1.8.1)
Date/Time: 2020-03-14 12:20:02.905 -0400
OS Version: Mac OS X 10.14.6 (18G3020)
Report Version: 12
Bridge OS Version: 4.2 (17P3050)