This problem seems to not be cofined to ArmA Reforger. There is a similar issue happening on ArmA III
https://feedback.bistudio.com/T190541

Can confirm there is a similar issue on ArmA Reforger regarding Round Start:
https://feedback.bistudio.com/T190471

Can confirm from additional source that other servers are suffering this issue, too.

Oh, thanks, no, this is regarding ArmA Reforger. The task tag needs to be edited (by someone...).
Thank you for noticing!

Jerry Cans are present in the base game. They can be spawned at an Ammunition Supply or from a Fuel Truck.

No, there is a fuel station in the compound in Montignac. It is a little East of where the Command Tent is usually on a standard map.

These past two days or so the issue seems to not be apparent for me. It usually occurs every time.

Bugs noticed during this experiment have also been reported individually:

A non-PDF version of the report was requested. Here it is, without the images: