Created attachment 192516 [details] Sample slide (PPTX) 1. Open document 2. Invoke presentation mode Actual outcome: the background image teeters and then lands in a random position - different from one invocation to the next! Expected outcome: the background image teeters and returns to its starting position. (The sample document is PPTX and Impress may be defining the "Emphasis - Teeter" effect differently than PowerPoint, in which case for interoperability we'd need a special mode. That said I'd challenge the idea of random effects like this in presentations and believe Impress could/should be adjusted.) Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 3d3242ef3a6f111d6220c60d5c1b968c7f46fc5f CPU threads: 12; OS: Linux 6.6; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US all the way back to Version: 7.0.7.0.0+ Build ID: 54e9dd41dc9dd45af12c9346199f601ea4a5994d CPU threads: 12; OS: Linux 6.6; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US TinderBox: Linux-rpm_deb-x86_64@86-TDF, Branch:libreoffice-7-0, Time: 2021-05-07_08:22:18 at least.
Created attachment 192517 [details] Screenshot of presentation mode - effect of random tilt highlighted in red
Reproduced on: Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: d2fa44db6f8a1badece63856ee0f12db4cba9b28 CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3 Locale: en-AU (en_AU.UTF-8); UI: en-US Calc: threaded Checking with the linux-64-releases bibisect repo, the animation always looked bad, since it was imported and used in libreoffice-3.5.0rc3. In libreoffice-3.4.6rc2, no animation is listed in the sidebar. No difference if saved as ODP. MS Office 365 (web) does show the animation listed (as "Existing"), but does not animate the image when presenting. OnlyOffice animates properly.
Present still with Version: 25.2.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 513c2bdbb1e7c0ad669d03043db61c94d6524aba CPU threads: 12; OS: Linux 6.9; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US