Dousing Charm should also grant immunity to flammability

Dousing Charm grants immunity to ignite, but as long as we keep getting hit, our flammability will stay at 100%, which means a 100% chance to get ignited after the end of the charm's effect.

Other charms (freeze, shock, etc.) prevent any build-up during the charm's effect, so the buildup would start only AFTER the charm, thus you are less likely to be affected by it. But with dousing charm, the build-up is kept at 100%, just waiting for the effect to end to immediately ignite you again. This did not happen in the previous patch, since flammability didn't exist.

Thus, I believe dousing charm should also provide 'immune to flammability' alongisde 'immune to ignite'.

Good suggestion and it is probably an oversight since they reworked ignite.