I've just installed build 42 and it warned me that "Your disk cache folder is on a drive that does not have enough available storage to safely store the full amount...". I'd specified 100 GB max in preferences and the drive still had 122GB left. I'm not sure if this is correct behaviour - I guess leaving 22 GB is not perfeect. But it doesn't really seem right the way it was reported.
Also, when I tried to report this bug, I got redirected to the UK site and it lost the reporting process. I had to re-submit from AE and it then correctly came to this page.
Thank you for reporting this issue in the Beta build. Would you be able to confirm that the preferences for After Effects (Beta) are set to the correct drive? The Beta builds do not share preferences with the non-Beta builds and therefore the cache would be set to the default location on the system drive when first launched.
When you were trying to report this issue, what link did you use which then redirected you to the UK site and which UK site was it? We would definitely like to avoid any bugs or issues getting lost in such a manner.
Please let us know if the above suggestion about the cache preference made any difference and thank you again for any additional information.
- John, After Effects Engineering