base coat is solvent, adhesion of water based matt question

So, grabbed a can of B&Q trade undercoat to whiten the walls prior to coloured water based matt (B&Q mixed 'durable matt').

undercoat went up fine, left it 24 hours, gave it a light sand to get some brush strokes out and started cutting in all my door frames, near the end of it, I noticed some areas are showing signs of non-adhesion. Paint seemed to pulling back from some spots, showing little white dots of clean undercoat.

This is only happening on a few small areas.

Checked the undercoat tin out, and it's a solvent based one >.<.

As mentioned, this lack of adhesion is only evident in a few places, and a second coat covers it up.

Essential question: Can I get away with matt paint over solvent undercoat, or is it so likely to peel that I should clean off the paint I've already put up and find an alternative undercoat?

Cheers,
Sam.

It would be fine to apply your emulsion over the u/c providing your satisfied that the u/c is stable.

Either the surface under the u/c was unstable, or the paint was inferior. I dislike Wickes paint even though it's got their name on it.

Dec.

Did'nt quite get that one right, anyway I dont like B&Q paints either

Dec.