The TODO items need to be scheduled first (since it's the REschedule
that is causing it).  Can you try:

* TODO A
SCHEDULED: <2016-01-01 Mon>
* TODO B
SCHEDULED: <2016-01-01 Mon>

Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:

> Hello,
>
> Allen Li <darkfeline@felesatra.moe> writes:
>
>> When bulk rescheduling TODO items with org-log-reschedule set to 'note,
>> only the first marked item will get rescheduled.  I have reproduced this
>> on a fresh clone of the Git repo with a minimal config.
>>
>> Here is the *Messages* snippet:
>>
>>   Org-mode version 8.3.4 (release_8.3.4-635-g268486 @ /<snipped>/org-mode/lisp/)
>>   Press key for agenda command (unrestricted):
>>   1 entries marked for bulk action
>>   2 entries marked for bulk action
>>   Bulk: [$]arch [A]rch->sib [t]odo [+/-]tag [s]chd [d]eadline [r]efile [S]catter [f]unction
>>   Scheduled to <2016-03-09 Wed> [2 times]
>>   Skipping removed entry at #<marker (moves after insertion) at 42 in test.org>
>>   Acted on 1 entries, skipped 1 (disappeared before their turn)
>>   Note store
>>
>> Here is the config:
>>
>>   (add-to-list 'load-path (expand-file-name "~/<snipped>/org-mode/lisp"))
>>   (add-to-list 'auto-mode-alist '("\\.\\(org\\  |org_archive\\|txt\\)$" . org-mode))
>>   (setq org-agenda-files '("/tmp/test.org"))
>>   (require 'org-install)
>>   (require 'org-habit)
>>
>>   (global-set-key "\C-cl" 'org-store-link)
>>   (global-set-key "\C-ca" 'org-agenda)
>>   (global-set-key "\C-cb" 'org-iswitchb)
>>
>>   (setq org-log-reschedule 'note)
>
> I cannot reproduce it with the following "test.org":
>
>  * TODO A
>  * TODO B
>
> Could you also provide the "test.org" you are using? Thank you.
>
>
> Regards,