Always read the tech sheets. Here's a quote:

"When [DP90] is sprayed over lacquer substrates or basecoat that is not crosslinked,
and then allowed to set overnight before applying another coat of primer or a topcoat,
lifting can occur. This can be avoided by applying the DPLF Epoxy Primer, color and
clear coat in the same day or by adding 5% of DX57 RTS DBC."

...and the link:
DP90 tech sheet