I think this might be a bug, but when shapes from Illustrator are copy and pasted as layers into Photoshop, the resulting group created in Photoshop behaves irregularly. Depending on the position of the group in the layer stack, it gets renamed almost incrementally. If the group is duplicated, it gets renamed to " copy" (if the option is enabled), suggesting the name is not really what it appears to be. Committing a rename on it will break this unusual behavior and it will act like a normal layer group.
Steps to reproduce:
- Create a shape in Adobe Illustrator and copy it.
- Paste it in Photoshop and choose the "Layers" option.
- Create layers above or below the pasted group in the layer stack and watch as the group gets renamed autmoatically.
Here are some of my system specs reported by Photoshop.
Adobe Photoshop Version: 23.3.2 20220503.r.458 d8a9c44 x64
Number of Launches: 147
Operating System: Windows 10 64-bit
Version: 10 10.0.19042.1645
System architecture: Intel CPU Family:6, Model:14, Stepping:13 with MMX, SSE Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2, AVX, AVX2, HyperThreading
Physical processor count: 8
Logical processor count: 16
Processor speed: 3600 MHz
Built-in memory: 65366 MB
Free memory: 41922 MB
Memory available to Photoshop: 51269 MB
Memory used by Photoshop: 70 %
SAM SDK Version: 2.0.0-main.1076