MSR tent seam seal fault/s

Hey. I have two MSR Carbon Reflex tents. A one and a two. I've not looked too hard at them in the past but both appear to have the seam sealing starting to perish, with the newer 2 being the worst. The one has the velcro pole clips sewn on but the 2 has them glued. One has already come off from the 2, bummer.
I've a trip coming up soon so I'm needing a solution. I have bought some seam sealer as I figured it was just a bit of maintenance required which I was OK with doing. The primary issue is the old sealer has become tacky flakes. It won't brush off completely so applying the seam sealer may not get a good seal and to come back to it is going to be ever harder to sort.
Anyone had similar experiences? I think Tightlines are the agents and they are just down the road from me so I may pop in and see them.
Carbon 2 (glued velcro)
Attachment 247065
Carbon 1 (sewn velcro)
Attachment 247066

The agents Ampro sales were very good when I had tent trouble.

I had the same problem with one of my msr tents, took it back to where I bought it and it was replaced immediately.

As above speak to agents. If not looked after , need to really clean ll residue & waterproofing tape off, clean with a solvent , 90plus ethanol will work , then glue it with some sail tape, some amazing new age glues out for sailmakers