Loganberry leaves weird, berries inedible

Hi folks,

some questions about a Loganberry bush I planted last year. This year it started growing profusely, growing primocanes that must be coming close to 4 meters. It is still growing fine as of today's post. This makes me assume it is healthy, but at the same time, when berries started ripening in July, I noticed that they were all dried up with only very few of the globules on the berry ripening, with the others being all dried up. At first I thought it might be a pollinator issue, but then all my other fruits around it did fantastically, which made me think it might be a disease/virus/bacteria.

Unfortunately I did not make photos at the time of berry ripening, but I do have photos of the bush and its leaves. All other Loganberry photos I have looked at online, the leaves are entirely different. Mine are very warty and curled, but besides that look healthy.

Am I just being paranoid? What might have caused the berries to fail? Are the leaves just different because the Loganberry I bought in Russia is a bit different from the forms supplied in EU/US? Of course, I will wait for next year's season to find out for sure, but the suspense is killing me and I was eager to hear other's opinions.

Cheers everyone!

P.S. On the last photo you can see the very different appearance of the Loganberry leaves vs. its neighbouring Navaho Blackberry

Welcome to the forum, Malina!

I have not had any experience with loganberry.

Your pictures could be showing several things happening.

Maybe by bumping your topic a little someone will know the answer.

Fungal diseases can cause shriveled, blackened berries.  I think these are botanically referred to as “mummies.”

On my black raspberries I see this often on the lower-hanging fruit as spores spread from the ground.

I have read that disposing of affected fruit immediately can reduce spread, but have never been diligent enough to adequately test that hypothesis.