Do SOIC op-amps packages behave differently from DIP?
Unfortunately this won't be the first time of ICs marked X not behaving as component X should do, having come from Ebay / AliExpress etc.

Since you have some known-good DIP versions of this device, and (excluding gross soldering mistakes) the SOIC version of this device should behave the same, I would be concerned that you don't have genuine, working ICs of the marked part number. We had another example of this situation with EEPROMs sold through AliExpress, in a question a few days ago. Sorry...