Recurring disinformation narratives deflecting blame for chemical attacks from the Assad regime; painting the White Helmets as cooperating with terrorists or terrorists themselves; and aiming to discredit the OPCW.
The "new leaked report" appears to be an engineering assessment carried out by one individual who, contrary to Sputnik's false claim, was never a member of the Fact-Finding Mission and is not currently employed by the organisation.
The individual, however, was affiliated with the OPCW as an engineer and apparently had access to materials gathered in the course of the Douma FFM, and based his/her conclusions on the same evidence pool. An OPCW press statement confirms that "all information was taken into account, deliberated, and weighed when formulating the final report regarding the incident in Douma."
The OPCW Technical Secretariat is conducting an internal investigation about the unauthorised release of the document in question. Regardless of the authenticity of the leaked document, its conclusion that the cylinders could not have been dropped from the air:
a) has been addressed in the actual OPCW report on Douma (Annex 6, pp. 55-56);
b) does not support the outlandish claim that the incident was staged and represents a false accusation against the Syrian regime.
The White Helmets have not once been caught staging anything, and the version of the staged chemical attacks in Douma in 2018 was never "official".
See more disinformation cases on the subject and their debunking for more details.