I've had two LPs kindly increase their initial commitment. In both cases, there were these exact 2 bugs:
(1) no email came, as per usual "[Decile Hub] xxx has signed a PACT"; and
(2) when I go into Decile Hube / Limited Partners / PACTs, I do see the new amount displayed but when I download the PACT from there, it only shows the old lower amount. 

This was a bit awkward because I usually wait on the phone for my LPs to sign and check. My quick workaround was to completely delete the old PACT from Hub and then ask the LP to sign the PACT again.