Affected Product:
TrainController - Version 9.0 A3
Problem:
When attempting to release a block in a situation where this is not allowed, TrainController may crash.
Details:
For example, if you try to drag&drop a train, that is currently not controlled by a schedule, from one block to another while the program is in the frozen state (release of blocks is not allowed in this situation), the program may crash. For trains that are currently controlled by a schedule, this crash does not occur.
Workaround:
Do not remove trains from blocks if this is not allowed - for example, not in frozen state.
Status:
Elimination of the crash in version 9.0 A4. The removal of a train from a block will of course remain forbidden in situations where this is not allowed.