Shimmering screen on C128 when running Retro Replay on UII and UII+ about 1541ultimate2

[Flexmaen]

What's your PHI2 value? It is 80ns by default, if I set it to 120ns the 1541U runs a lot more stable on my C128. Maybe you could try this.

[megaman85]

I swapped the UII for UII+, both running firmware 3.1a500+ v1 firmware and the shimmering is gone.

For some reason my NTSC C128 when paired with the UII even with the newest firmware is finicky but it works well with the UII+ running the newest firmware.

The UII behaves differently than the UII+ when running on my NTSC C128.

When UII is used with C128, I can't play Phobia with REU and I can't run Slipstream without crashing but when used with the UII+, the C128 plays those without issues.

I swapped the UII for UII+ on C128 and it works well now. I now use the UII on my Breadbin C64.

The UII when used with the C64 bread bin works without issues and I will leave it at that.

Currently I am using 112ns PHI2 value on my NTSC C128 and UII+ as that is more stable for my C128 , especially when running Slipstream in C64 in which it will crash will 120ns PHI2 value setting but runs fine with 112ns.