On 18 Nov 2016, at 20:59, Jonathan Monahan wrote:
Clearly the problem is probably caused by the number of files. Prior to RC1, the list appeared instantaneously, but additional files filled in the list later. Is it possible to go back to that behaviour which has worked well for many years?
Try holding option and select TextMate → Check for Test Builds.
In rc.3 the main thread is stalled until the list has updated with the currently open files, which was indirectly the case prior to rc.1, so rc.1 actually should load files slightly faster than before, but because there was no stalling of main thread, it was possible to press return before the main thread had updated the table with the open files.