Please note, that only one trial license is required to test multiple apps. It is not required and it is not recommended to assign multiple trial licenses (e.g. one trial license per app) to a device.
Unfortunately, due to a bug in the license management, you might (temporarily) lock your device when uploading a capability response which contains multiple trial licenses. An image update does not solve the problem. To restore the device, you either must wait until the trial license(s) expire or send the device to the Bosch Rexroth Service. A version of the license management in which the bug is fixed will become available with the next update.