OP did you completely take the uppers apart. Thats is to say did you remove the rebound damper out of the leg. If you just removed the compression damper and then tipped the oil out of the leg then I would bet there was oil still left in the leg when you added the 123ml, even if you cycled the rebound damper oil can still be present. This would then cause the problem you are having. Tip out the oil remove the rebound damper and start again.
If you have already done that in the first place then double check the oil levels chart as they differ from year to year not dramatically but enough to cause problems.