[BUG] Canvas doesn't refresh when updating icon

When making a change to an icon, the canvas doesn’t re-draw unless I toggle the maximization status of the window.

Luncay2

This seems very similar to this topic, but I don’t have the Nahimic service installed.

Further details:
Lunacy 6.4
.NET 3.5.30729.4926 & 4.8.03761
Graphics Card: NVIDIA Quadro P400, driver version 26.21.14.3170
OS Name: Microsoft Windows 10 Enterprise
OS Version: 10.0.17763 N/A Build 17763
System Manufacturer: HP
System Model: HP EliteDesk 800 G3 SFF
Processor(s): [01]: Intel64 Family 6 Model 94 Stepping 3 GenuineIntel ~3408 Mhz
BIOS Version: HP P01 Ver. 02.27, 2019-04-14
RAM: 16GB
Hotfix(s): 10 Hotfix(s) Installed.
[01]: KB4578973
[02]: KB4470788
[03]: KB4486153
[04]: KB4537759
[05]: KB4539571
[06]: KB4561600
[07]: KB4570332
[08]: KB4577667
[09]: KB4580325
[10]: KB4577668

Has anybody come across this issue?

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