Yes, there is a bug in the logic. It has been fixed and will be in the next update.
This is also a bug and has been fixed. It will also be in the next update.
Thanks for reporting these issues.
I just did a test. I started the aircraft (Auto-Start), shut off the left bleed valve, switched on the X-Valve, and the X-Valve Open Light came on. Unless you can provide more details, I don't think there is any issue here.