I received another reply from HTC to troubleshoot the update delay:
Thanks for your reply Steve. The first thing we'll need to do would be to wipe the cache partition of the entire phone. This is different from wiping the cache from a single device. For your convenience I've attached a document that details how to perform the wipe itself. Please let me know if you have any other questions or concerns, and thanks for being a member of the HTC community!
Sincerely,
Joseph
HTC
attached text document:
[FONT="]To wipe the cache partition you will need to get to the recovery menu by way of the factory reset menu. You will not be performing a factory reset, and none of your data will be lost as a part of this particular wipe. To get to the factory reset menu, perform the following steps: [/FONT]
[FONT="]1. Turn your phone all the way off. [/FONT]
[FONT="]2. With the phone off, press and hold the Volume Down and Power buttons. After about 5 seconds of holding both buttons you should find the phone on a white screen with three green androids across the bottom on skateboards. When you see this screen you can release both buttons. [/FONT]
[FONT="]- If the above doesn't work, your can also Restart the phone by pressing and holding the power button, then select Restart. As soon as the screen turns off, press and hold Volume Down and you should get to the white screen instead. [/FONT]
[FONT="]3. On this screen, use the Volume Down button to highlight the RECOVERY option, then press Power to select it. [/FONT]
[FONT="]At this point he phone should reboot, but go to a black screen with a picture of the phone on it and a red triangle. When you get to this screen, do the following to pull up the recovery menu and perform the following: [/FONT]
[FONT="]1. Hold Volume Up and press Power briefly and the recovery menu should appear. [/FONT]
[FONT="]2. In this menu, use Volume Down to highlight the "Wipe cache partition" option, Then Power to select it. The cache wipe will take about thirty seconds to one minute, maybe longer. [/FONT]
[FONT="]3. Once the wipe is complete it will take you back to the recovery menu. Press Power to select "Reboot system now" this option and the phone will boot up like normal. [/FONT]