when you pulled out the damper the first time was it compressed from the factory like it is now? if it was then I'd say your damper may need to be warrantied.
Apart from that you didn't happen to touch the Allen head screw under the HSC dial for the excess fluid blowoff from the bladder & it's now too soft.
Other possibles may be a seal, a hole in the bladder , the bladder lock ring not seating properly, a leak from the threads of the tube & bladder nut.
I found in the past pulling everything apart ,cleaning & reassembling again sometimes works to resolve the issue.