I have AT4 v4.10.0, AT5 v5.0.2, and CS v2.0.0 installed on a new computer. No previous versions were installed on this system. The very first thing I did after installing was 'restore purchases' in CS.
AT4 has no problems, all purchased gear is recognized. AT5 shows the following purchased gear as locked:
AMP
MAZ 18 Jr, Dual Terror, OR 50, Z Wreck, AD 200
CAB
1x15 OBC 115, 4x10 OBC 410, 8x10 OBC 810
STOMP
Seek Trem
These models are also missing from the CS 'My Gear' page. However, searching for each one individually shows them as purchased gear (green check mark in the corner of the graphic).
After troubleshooting this for several days here is what I discovered:
Unauthorizing/reauthorizing AT5 properly resets the purchased gear, unlocking it in AT5. I don't even need to reboot first.
If I then open CS, the gear gets locked again. I don't need to do anything else: just opening CS locks the gear.
I have repeated these steps four times with the same result. As long as I don't open CS, everything works fine. If I open CS for any reason, I have to reauthorize AT5 to get all my gear back.
Just posting this in the rare event anyone else has the same kind of problem