I just resumed using Forge, having quit when I encountered a freeze condition in 1.5.4 that was not addressed. Unfortunately, I found that the problem persists in 1.5.17.
My
previous bug report remains accurate for this version, with one exception: I can now successfully concede the game.
This time, I have attempted to augment the usefulness of the report with a brief video which demonstrates the frozen game state, as well as runaway CPU usage. Unfortunately, the forum software will not allow me to include the URL: "Your post looks too spamy for a new user, please remove off-site URLs." Instead, I will explain that it is a YouTube video which is accessible at: watch?v=v6FSZRIc6eg