Yes, I am having some sort of weird inconsistent problems with opening a Modular V preset with Analog Lab 2 inside FL Studio. If I select a preset for the first time and try to open it, the preset will no longer make a sound. As a current workaround, I can use the arrow in the toolbar to select the next preset and then move back to the desired preset. Then the sound will work. Or I will select a preset, and it will open but it won't sound the same as when I auditioned it in the Analog Lab interface. If I continue to work with Modular V presets, I seem to have less of a problem. It seems to occur more often, if say, I switch from Mini preset and then back to Modular preset. Only once did I receive a notice that I needed to upgrade to the newest Modular version.
Is the no sound and upgrade request issue happening frequently with you? If I switch from one Modular preset then to another Modular preset, it seems to then work okay. If that works for you, then there's at least a temporary workaround.