Please see attached which has the following code which reproduces the issue:

#+begin_src sh :shebang #!/bin/bash :results none
for (( i=1500 ; i>0 ; i-=1 ))
do
     head -c 6 /dev/urandom | uuencode -m -
done |
tee /dev/null
#+end_src


On 11/18/22 02:45, Ihor Radchenko wrote:
> Daniel Ortmann<daniel.ortmann@oracle.com>  writes:
>
>> I have several small sh source blocks with ':results none'. The source
>> is executed for effect and the last line of the source is:
>> ... | tee /target/path/to/file.csv
>>
>> ⛔ Error (org-babel): Error reading results: (user-error "Region is
>> longer than ‘org-table-convert-region-max-lines’ (999) lines; not
>> converting")
>>
>> I expected that :results none would simply drop the output rather than
>> complaining about it.
>>
>> Even though it says "error", the results seem to be correct.
> This is because blocks with :results none may still be used as input for
> other source blocks as reference or noweb reference. So, the results are
> computed, but not inserted or otherwise indicated.
>
> Could you please provide a reproducer so that we fix the issue with
> table conversion?
>