For some reason, the plate solve routine will only take a one second exposure, even if I have it set for anything else. This makes plate solving impossible in some parts of the sky.
I am using an EOS camera, and have it set to Manual, I also have gone back, disconnected, reconnected with APT or similar and verified that I can take exposures of any duration.
If you had a previous sequence it does not get updated.
The idea is you may have a standard template that you want to use repeatedly however in that session of the sequence you may want to change settings just within that sequence.