Hello,
I launched Kdenlive today and discovered that position and zoom effect was not working. I can confirm it was working a few weeks ago.
It shows the effect in Preview window, but in rendered file, the effect is not applied.

Kdenlive version: 21.04.0-3 (installed/updated through Pamac-GUI)

System information:

Code: Select all

System:    Kernel: 5.10.36-2-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 Desktop: KDE Plasma 5.21.5 Distro: Manjaro Linux
           base: Arch Linux
Machine:   Type: Laptop System: HP product: HP Pavilion Notebook v: Type1ProductConfigId serial: <filter>
           Mobo: HP model: 8216 v: 83.18 serial: <filter> UEFI: Insyde v: F.52 date: 05/02/2019
Battery:   Device-1: hidpp_battery_0 model: Logitech Wireless Mouse MX Master 2S charge: 55% (should be ignored)
           status: Discharging
CPU:       Info: Dual Core model: Intel Core i7-7500U bits: 64 type: MT MCP arch: Amber/Kaby Lake note: check rev: 9 cache:
           L2: 4 MiB
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 23209
           Speed: 700 MHz min/max: 400/3500 MHz Core speeds (MHz): 1: 700 2: 700 3: 701 4: 700
Graphics:  Device-1: Intel HD Graphics 620 vendor: Hewlett-Packard driver: i915 v: kernel bus-ID: 00:02.0
           Device-2: NVIDIA GM108M [GeForce 940MX] vendor: Hewlett-Packard driver: nvidia v: 460.80 bus-ID: 01:00.0
           Display: x11 server: X.Org 1.20.11 driver: loaded: modesetting,nvidia resolution: 1920x1080~60Hz
           OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa 21.0.3 direct render: Yes
Audio:     Device-1: Intel Sunrise Point-LP HD Audio vendor: Hewlett-Packard driver: snd_hda_intel v: kernel bus-ID: 00:1f.3
           Sound Server-1: ALSA v: k5.10.36-2-MANJARO running: yes
           Sound Server-2: JACK v: 0.125.0 running: no
           Sound Server-3: PulseAudio v: 14.2 running: yes
           Sound Server-4: PipeWire v: 0.3.28 running: yes
Network:   Device-1: Realtek RTL810xE PCI Express Fast Ethernet vendor: Hewlett-Packard driver: r8169 v: kernel port: 3000
           bus-ID: 03:00.0
           IF: eno1 state: up speed: 100 Mbps duplex: full mac: <filter>
           Device-2: Intel Dual Band Wireless-AC 3168NGW [Stone Peak] driver: iwlwifi v: kernel port: 3000 bus-ID: 05:00.0
           IF: wlo1 state: down mac: <filter>
           IF-ID-1: virbr0 state: down mac: <filter>
Bluetooth: Device-1: Intel Wireless-AC 3168 Bluetooth type: USB driver: btusb v: 0.8 bus-ID: 1-7:4
           Report: rfkill ID: hci0 rfk-id: 1 state: up address: see --recommends
Drives:    Local Storage: total: 3.18 TiB used: 1.1 TiB (34.8%)
           ID-1: /dev/sda vendor: Seagate model: ST2000LM003 HN-M201RAD size: 1.82 TiB
           ID-2: /dev/sdb vendor: Western Digital model: WDS480G2G0A-00JH30 size: 447.13 GiB
           ID-3: /dev/sdc type: USB vendor: Lenovo model: USB Hard Drive size: 931.51 GiB
           ID-4: /dev/sdd type: USB vendor: SanDisk model: Cruzer Blade size: 14.32 GiB
Partition: ID-1: / size: 421.94 GiB used: 121.97 GiB (28.9%) fs: ext4 dev: /dev/sdb2
           ID-2: /boot/efi size: 299.4 MiB used: 296 KiB (0.1%) fs: vfat dev: /dev/sdb1
Swap:      ID-1: swap-1 type: partition size: 17.08 GiB used: 0 KiB (0.0%) dev: /dev/sdb3
Sensors:   System Temperatures: cpu: 47.0 C mobo: N/A
           Fan Speeds (RPM): N/A
Info:      Processes: 228 Uptime: 34m Memory: 15.52 GiB used: 2.65 GiB (17.0%) Init: systemd Compilers: gcc: 10.2.0
           clang: 11.1.0 Packages: 1538 Shell: Zsh v: 5.8 inxi: 3.3.04


Use transform, it does pretty much the same thing but better

I also have this issue in 21.11.70-b4c4... It's an AppImage build.

You mention instead using Transform, and I have Transform as a compositor and as an Effect.
I am able to resize the clip when using Transform the effect, BUT Transform compositor seems to have same issue as Position and Zoom effect:
I adjust size or use the graphical "handles" and the boundary box can change positions/size, but not the actual clip.

Another strange issue I'm having is with the Fade-in/out. The gradient goes from black to inverted red/green coloring instead of proper color.

maybe it's something related to this strange behaviour on keyframes? https://invent.kde.org/multimedia/kdenl ... ssues/1228

I don't think it's related, but thank you.
In that bug video he's actually able to get the video size to change, but in mine it will not at all. Even if I preview render nothing happens despite the values and the outlines changing.