I have a PB E-11 and have been very happy with the quality. I agree about the scope rail - their R1 E-11 has a hollow, real metal scope rail which I'm very jealous of. If they bring that over to the ANH I would be very tempted to upgrade.
Hopefully reinstalling solves your problem. Sadly with Microsoft pushing Edge and depreciating IE if it is a browser issue unlikely to be fixed. Good luck.
If someone could figure out how to effectively stuff a VR headset in a bucket then more power to them. Would be a great workaround for visibility issues (especially bubble lenses).
Looking good. I would stop and add more ABS paste to those low spots (holes) before going further, or you are just going to make more work for yourself.
Unfortunately it takes a few passes of paste -> sand -> polish to get things looking seamless.