ID 377762 - The two arrow icons in the Tool HUD to collapse/expand tools that have been recently used and added are not displaying

​Problem summary
The two arrow icons in the Tool HUD to collapse/expand tools that have been recently used and added are not displaying. 

Customer reported version
Modo 12.2v1 

Customer reported platform
MacOSX 10.14 

Steps to reproduce

1) Open Modo. 

2) Use "Ctrl + Tab" to open the Tool HUD. 

3) In the Tool HUD, the two arrow icons that can collapse/expand the recently used and added tools are not displaying. 

Modo 12.2v1 

Modo 12.0v1 
​

​

Workaround
Unknown.  

Reproduced by support

This bug has been reproduced in:
Modo 12.2v1 - Windows 10 - CentOS 7 - MacOSX 10.14 
Modo 12.1v2 - Windows 10 - CentOS 7 - MacOSX 10.14  
Modo 12.1v1 - Windows 10 - CentOS 7 - MacOSX 10.14 - regression 

Unable to reproduce bug in:
Modo 12.0v1 - Windows 10 - CentOS 7 - MacOSX 10.14 

Earliest version tested
Modo 12.0v1 - This issue no longer appears in this version and has regressed.

Expected behaviour
In the Tool HUD, there should be two arrow icons to collapse/expand tools that have been recently used and added to the HUD. 

Actual behaviour
The two arrow icons to collapse/expand tools are not displaying in the Tool HUD.