i can confirm that

yes, it can also happen if you have something in your hands, like an axe

In T118081#1476368, @bSCRd wrote:

This happened to me twice, but the second time was likely a continuation of the first. On a public server, I was completely geared up with an m4 and an fnx. I had painted the m4 attachments green. I signed off for the day, and when I logged back in the next day I was stripped of all gear and my m4 was stripped of all attachments. The fnx still had its attachments except no mag. I relogged multiple times hoping it would fix itself, to no avail.

Using the same character, I then proceeded to gear up again. Luckily I was near NWAF tents. I gear up again and find an AKM with drum mag and experienced the same stripping of gear and weapons upon logging into a new server later that session.

Since that character died I've avoided the m4 and painting weapons/attachments and have not experienced the issue since.

Same Problem here, just relogged and all gear gone, exept my M4A1 (but without any Attachments)